A federal prosecutor has issued a subpoena for the cellphone and other electronic records of Anthony Weiner after DailyMail.com revealed his underage sexting.

Preet Bharara, the prosecutor for the Southern District of New York, issued the order just a day after our revelation - and after the NYPD Special Victim's Unit began looking into possible charges resulting from the exchange between him and an out-of-state minor.

CNN first disclosed the move by prosecutors from Bharara's office. He acted after the FBI opened its own investigation, the new network said.

Weiner carried on a months-long online sexual relationship with the girl during which she claims he asked her to dress up in 'school-girl' outfits for him on a video messaging application and pressed her to engage in 'rape fantasies', DailyMail.com has exclusively reported.

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NYPD Special Victim's Unit is looking into possible charges resulting from the sexting email exchange between a 15-year-old high school and Anthony Weiner, seen here in a photo taken on Wednesday morning

The father of the 15-year-old girl who had a months-long online relationship with Anthony Weiner has lashed out at the disgraced politician for giving his underage daughter's name and information to the media

Action: Prosecutors from Preet Bharara's office have acted to seize Anthony Weiner's cellphone and other electronic records.

The girl, whose name is being withheld by DailyMail.com because she is a minor, said the online relationship began last January while she was a high school sophomore and before Weiner's wife, Hillary Clinton's aide Huma Abedin, announced she was ending their marriage.

NO DENIAL: WHAT WEINER TOLD DAILYMAIL.COM 'I have repeatedly demonstrated terrible judgement 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. '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.' Advertisement

Weiner was aware that the girl was underage, according to DailyMail.com interviews with the girl and her father, as well as a cache of online messages.

A subpoena of his cellphone and other records would disclose details of the interactions with the 15-year-old girl.

It could also mean any other communications he had being examined to see if they were with minors.

Celebrity lawyer Joe Tacopina told DailyMail.com that Weiner could face a charge of endangering the welfare of a child, a misdemeanor punishable by up to a year in jail and three years probation.

Based on the graphic nature of the texts and the explicit topics discussed, Tacopina said that line of inquiry would 'certainly be up for grabs' for investigators.

Tacopina said the police would be able to build a strong case around the messages obtained by DailyMail.com without having to rely upon the credibility of his young accuser.

'All you really have to do is look at the messages there to substantiate 90 per cent of her story,' he added. 'If she is a problem child that actually makes her more vulnerable and this is even more egregious, quite frankly.'

Gov. Andrew Cuomo said Wednesday​ ​Anthony Weiner sexting with an underage girl could land the disgraced ex-congressman jail time.

'I've only read the reports and let me say this: If the reports are true, it's possibly criminal and it is sick,' he told reporters. ​​'And frankly I've heard enough about Anthony Weiner and I think that goes for all New Yorkers.'

Bharara and the FBI's move came hours after DailyMail.com revealed that Weiner had disclosed the identity of his victim to media outlets.

The girl's father said reporters showed up at his home shortly after Dailymail.com reported on Wednesday that Weiner had exchanged flirtatious and sexually-charged messages with the 15-year-old girl starting in January.

And he even received a harassing call from one prominent news anchor.

In the online messages, Weiner, 51, who called himself T Dog, sent bare-chested photos of himself to the underage girl, repeatedly called her 'baby' and complimented her body, and told her that he woke up 'hard' after thinking about her, according to copies of the conversations.

In one particularly lewd message, he told the teen: 'I would bust that tight p***y so hard and so often that you would leak and limp for a week.'

Huma Abedin, Weiner's estranged wife, refused to comment on the scandal when photographed Thursday morning

When confronted with the claims, Weiner did not deny exchanging 'flirtatious' messages with the teen. He declined to comment on the specifics of the allegations on the record, but provided copies of two emails the girl sent him that he contends raised questions about her claims. DailyMail.com publishes them below.

He gave a statement to DailyMail.com in which he says, in part: 'I have repeatedly demonstrated terrible judgement 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.'

'I have repeatedly demonstrated terrible judgement 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.

In one message, he tells the girl he was 'hard' after thinking of her that morning

In one Confide message - which deletes the sender's name after the first message is open, Weiner tells the girl 'I would bust that tight p***y. 'The app is designed for confidentiality, and automatically deletes messages and images after the first time they are read or viewed. However, the girl took photos of a few of the messages and images from last February and March, which she shared with the Dailymail.com.

He goes on to say that he would 'bust' it 'so hard and so often that you would be limp for a week'

'I have repeatedly demonstrated terrible judgement about the people I have communicated with online and the things I have sent,' Weiner told DailyMail.com

'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.'

Bharara has a reputation as a fearless prosecutor, especially of politicians.

Shortly before the Weiner subpoena, he indicted one of Cuomo's former closest aides on corruption charges.

He is investigating alleged corruption of in the NYPD in a probe which has lapped at the closest aides of New York's Democratic mayor Bill de Blasio, and overseen the conviction of a series of corrupt members of the New York State Assembly, including of its former speaker, Sheldon Silver.

Bharara is also the prosecutor in charge of the terror investigation in the wake of the New York and New Jersey bomb attacks this weekend.