Prosecutors in the office of US Attorney Preet Bharara have issued a subpoena for Anthony Weiner’s cell phone and other records, according to law enforcement officials.

The FBI and the New York Police Department have opened preliminary investigations of allegations that the former New York Democratic congressman exchanged sexually explicit text messages with a purportedly underage girl.

Spokespersons for the US Attorney’s Office in Manhattan and the FBI declined to comment.

The allegations first surfaced in the Daily Mail.

The online sexting relationship allegedly went on for months between Weiner and a girl claiming to be just 15. The Daily Mail reported she said he sent her numerous photos, one of him in a pool and at least one bare-chested.

The outlet reported that the girl said she reached out to Weiner in January on Twitter.

In a statement to CNN, Weiner neither confirmed or denied sending the texts.

“I have repeatedly demonstrated terrible judgment about the people I have communicated with online and the things I have sent. I am filled with regret and heartbroken for those I have hurt,” he said.

Weiner continued: “While I have provided the Daily Mail with information showing that I have likely been the subject of a hoax, I have no one to blame but me for putting myself in this position. I am sorry.”

CNN has not been able to confirm this was a hoax.

In a statement, a spokeswoman for Republican presidential nominee Donald Trump noted that Weiner donated $550 to Hillary Clinton’s presidential campaign last year.

“The announcement by the FBI and New York Police Department that they are investigating close Clinton ally Anthony Weiner’s inappropriate relationship with an underaged female is extremely disturbing,” Jessica Ditto said. “The Clinton campaign should immediately return all campaign contributions from Weiner. America has had enough of the sleaze that is Clinton, Inc.”

Huma Abedin, one of Clinton’s closest aides, announced last month that she was separating from Weiner after photos emerged of him allegedly sexting with another woman while their son was in bed with him. That woman was described in the New York Post as a 40-something divorced woman from the West.

Weiner left Congress in June 2011 when sexually-charged, sometimes explicit, texts with women other than his wife first emerged. His social media habits continued after leaving Congress and contributed to his poor showing in the 2013 New York City mayoral race, a contest in which he had once been a leading contender.

CNN’s Sonia Moghe contributed to this report.

The Justice Department’s inspector general will issue a report on how top federal officials handled the investigation into Hillary Clinton’s use of a private email server while secretary of state.

Here are the key dates of the investigation from 2015 and 2016:

July 10, 2015 – The FBI opened a criminal investigation, code-named “Midyear Exam,” into Hillary Clinton’s handling of classified information while secretary of state.

Late September 2015 – As then-FBI Director James Comey prepared for his first public questions about the case at congressional hearings and meetings with reporters, he met with then-Attorney General Loretta Lynch at the Justice Department. Lynch asked him to refer to the investigation as a “matter,” Comey said in his book, “A Higher Loyalty.”

In a statement to CNN after Comey’s book was released, Lynch defended her language and said no concerns were raised. “If he had any concerns regarding the email investigation, classified or not, he had ample opportunities to raise them with me both privately and in meetings. He never did,” Lynch said.

June 27, 2016 – Lynch met with President Bill Clinton at an airport in Phoenix after Clinton realized the two were on separate planes on the same tarmac.

July 1, 2016 – Lynch said at the Aspen Institute that she “wouldn’t do it again”; she made clear she wouldn’t formally recuse herself from the investigation, but would accept the recommendations of career DOJ staff and the FBI.

July 2, 2016 – Hillary Clinton was interviewed by FBI for three-and-a-half hours.

Morning of July 5, 2016 – Comey, in “A Higher Loyalty,” said he called Lynch and Deputy Attorney General Sally Yates and told them that he planned to hold a news conference on the Clinton case and was not coordinating the statement with the Justice Department. Comey writes in the book Lynch asked only, “What will you be recommending?” and he replied with, “I’m sorry, but I’m not going to answer that.” He added: “It’s very important that I not have coordinated this in any way with the department. I hope some day you will understand why.” Lynch said nothing, according to Comey.

Later on July 5, 2016 – Comey issued a surprise statement on the email server investigation recommending no charges against Clinton; he said DOJ officials “do not know what I am about to say.”

September 22, 2016 – CNN reported federal prosecutors were investigating former Rep. Anthony Weiner, the husband of top Clinton aide Huma Abedin, for sexting with a minor.

September 28, 2016 – Comey testified in front of the House Judiciary Committee.

Asked if he would reopen the Clinton case if he found new information, Comey said: “It’s hard for me to answer in the abstract. We would certainly look at any new and substantial information.”

On or about September 28, 2016 – FBI Deputy Director Andrew McCabe was informed about Clinton emails found on Weiner’s laptop. “Got called up to Andy’s earlier…hundreds of thousands of emails turned over by Weiner’s atty to sdny, includes a ton of material from spouse. Sending team up tomorrow to review … this will never end …,” FBI counterintelligence agent Peter Strzok wrote to FBI lawyer Lisa Page. The two worked closely on the Clinton email probe, and later on the FBI’s investigation into Russian meddling in the election.

Early October 2016 – Comey, in “A Higher Loyalty,” wrote that someone at FBI (he believes McCabe), mentioned to him that the Weiner had a laptop might have some connection to the Clinton case. “I don’t remember the conversation clearly. I suspect that is because it seemed like a passing comment and the notion that Anthony Weiner’s computer might connect to Midyear and Hillary Clinton made no sense to me,” Comey said.

October 24, 2016 – The Wall Street Journal reported that Jill McCabe, the wife of Andrew McCabe, accepted nearly $500,000 from the political action committee of then-Democratic Virginia Gov. Terry McAuliffe, a Clinton family ally, during a failed bid for state senate in 2015.

October 26, 2016 – Rudy Giuliani went on Fox News to say that then-Republican presidential nominee Donald Trump had “a surprise or two that you’re going to hear about in the next two days.”

October 27, 2016 – Comey held a meeting with the Clinton e-mail investigation team at the FBI to discuss obtaining a search warrant for a set of Clinton-related emails the FBI had discovered on Weiner’s laptop.

Comey wrote in his memoir that the FBI agents in the room told him that it “would take many weeks” to review the newly discovered emails, and that there was “no chance” that it would be done before the election.

October 28, 2016 – Comey wrote to Congress saying, “In connection with an unrelated case, the FBI has learned of the existence of emails that appear to be pertinent to the investigation.” Lynch and Yates privately said the letter ran afoul of DOJ policy.

October 30, 2016 – Prosecutors obtained a search warrant to begin reviewing Weiner’s laptop for emails related to the Clinton investigation.

November 1, 2016 – McCabe sent emails to FBI executives and officials overseeing the Clinton email Investigation informing them that he was recusing himself from those investigations.

November 2, 2016 – Email is leaked showing that Peter Kadzik, then-head of legislative affairs at the Justice Department, offered Clinton campaign chairman John Podesta a “heads-up’” in May 2015 about a congressional hearing where a Justice official was likely to be questioned about Clinton’s email use.

November 6, 2016 – A second Comey letter to Congress stated, “Based on our review, we have not changed our conclusions that we expressed in July.” CNN reported that DOJ agreed with decision to send letter.

November 8, 2016 – Donald Trump is elected President of the United States.

CNN’s Marshall Cohen contributed to this report.

The FBI revealed Friday it was reviewing a new batch of emails that “appear to be pertinent” to its previous investigation into Hillary Clinton’s use of a private server — and multiple federal officials told NBC News they were found as part of an on-going probe of disgraced former New York congressman Anthony Weiner.

The emails were found on a laptop that Weiner allegedly used to send inappropriate text messages and pictures to an underage girl, the sources told NBC News.

Investigators also discovered Weiner’s wife, Huma Abedin, had used the same laptop to send emails to Clinton and now they are checking those messages to see if there was any classified information on them, the sources said.

Abedin, who is Clinton’s closest aide, is separated from Weiner.

Clinton said the FBI has not been in touch with her and called on Director James Comey to release whatever emails they found immediately. She said she has no idea what they might be but added, “I’m confident whatever they are will not change the conclusion reached in July.”

The Democratic nominee was referring to the FBI investigation of her use of a private email server while secretary of state which ended with no criminal charges against her.

“Voting is already underway, so the American people deserve to get the full facts immediately,” she said during a brief press conference.

Asked if it will affect the election, which most polls show her winning, Clinton said, “I think people made up their minds a long time ago.”

In his letter to the Senate Judiciary Committee announcing the discovery of the emails, Comey made no mention of Weiner, who resigned in disgrace in a sexting scandal.

“In connection with an unrelated case, the FBI has learned of the existence of emails that appear to be pertinent to the investigation,” Comey wrote. “I agreed that the FBI should take appropriate investigative steps designed to allow investigators to review these emails to determine whether they contain classified information, as well as to assess their importance to our investigation.”

A senior law enforcement official told NBC News Friday that the Comey letter was sent to the Hill “out of an abundance of caution” and to be extra-thorough.

There’s no indication, the official said, that Clinton, her campaign or the State Department withheld information about the contents on Weiner’s laptop.

The politically explosive revelation came just 11 days before Election Day and a top Clinton aide told NBC News that neither the candidate nor the campaign got any advance warning that Comey’s letter was coming.

“It boggles the mind why this step was taken with just 11 days to go,” Clinton campaign spokesman Brian Fallon said.

Comey should “provide the American public more information than is contained in the letter he sent to eight Republican committee chairmen,” Clinton campaign chairman John Podesta said in a statement.

“Already, we have seen characterizations that the FBI is ‘reopening’ an investigation but Comey’s words do not match that characterization,” he said. “Director Comey’s letter refers to emails that have come to light in an unrelated case, but we have no idea what those emails are and the Director himself notes they may not even be significant. It is extraordinary that we would see something like this just 11 days out from a presidential election.”

Tim Kaine, Clinton’s vice presidential running mate, who was at an early voting site in Tallahassee on Friday, told reporters “gotta read a little more, gotta read a little more” before continuing on.

Related: Read the Letter

Donald Trump called the revelation “bigger than Watergate” and praised the FBI for having “the courage to right the horrible mistake they made,” an apparent reference to the agency’s decision earlier this year to not press criminal charges against Clinton.

“I need to open with a very critical breaking news announcement,” Trump said at a campaign rally in New Hampshire. “The FBI has just sent a letter to Congress informing them that they have discovered new emails pertaining to the former Secretary of State Hillary Clinton’s investigation.”

“This was a grave miscarriage of justice,” he said, “it is about to be corrected.”

The Republican-led House Judiciary Committee also applauded the FBI’s move.

“The FBI’s decision to reopen its investigation into Secretary Clinton reinforces what the House Judiciary Committee has been saying for months: the more we learn about Secretary Clinton’s use of a private email server, the clearer it becomes that she and her associates committed wrongdoing and jeopardized national security,” the Judiciary Committee said in a statement.

Related: FBI Releases Notes From Interview With Hillary Clinton Over Emails

But Comey, who is also a Republican and who took a lot of heat in July for his agency’s decision to not charge Clinton with a crime, did not say in the letter that he was reexamining the FBI’s previous finding, which concluded that her handling of the emails was sloppy but not criminal.

Documents related to the case were released just before the Labor Day weekend and included a summary of Clinton’s July interview with the FBI about her private email server, as well as a detailed investigative summary of the case.

It is unusual for the FBI to tell Congress, as Comey did, that it is looking over newly discovered evidence in a criminal inquiry that was otherwise closed.

Federal practice is not to comment on ongoing investigations, or discuss details of concluded investigations. Comey previously explained his departure from that practice in his earlier congressional testimony, given the special nature of this case and congressional oversight inquiries.

Still, some congressional Democrats told NBC News Friday that they are frustrated that Comey issued the letter reopening this issue without providing much in the way of specifics.