Federal authorities have subpoenaed Anthony Weiner's hand-held device with which he allegedly carried on an online relationship with a 15-year-old girl, multiple news media reports said Thursday. 

On Wednesday, news broke that the former New York congressman and one-time mayoral candidate allegedly had sexted with an unnamed high-school girl who CNN reported lives in North Carolina. 

The FBI, NYPD Special Victim’s Unit, the Manhattan District Attorney and officials in North Carolina are now investigating.

“Detectives are looking into the incident,” the NYPD said.

The conversations between Weiner and the teen included graphic discussion of sexual fantasies and exchanges of photos, according to the story from the Daily Mail, to whom the girl provided dozens of screen grabs and taped testimony with her face obscured.

North Caronlina U.S. attorney Jill Westmoreland Rose, is also “reviewing all materials relevant to the matter,” a spokeswoman said in an email to the New York Daily News.

Weiner, who has a 4-year-old son with his estranged wife Huma Abedin, responded to Wednesday’s story saying that he is “sorry,” and claimed he showed the publication evidence that he is the victim of a “hoax.”

“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.” 

A legal expert told Metro that Weiner could be up against serious state and federal charges for endangering the welfare of a child and promoting sexual behavior.

“If there was any substantial step towards actually making it happen, it would be an attempted statutory rape,” criminal defense attorney Timothy Palatrano said. “If he actually crossed state lines at any point it’s ten years in prison.”

Weiner had resigned from Congress in 2011 after being exposed for engaging in other sexing scandals. This August another instance emerged that brought an end to his marriage with longtime Hillary Clinton aide Huma Abedin.

But Weiner also acknowledged “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.