Prosecutors at the office of U.S. Attorney Preet Bharara have subpoenaed records pertaining to Anthony Weiner's cell phone, following allegations that he sexted with a 15-year-old girl.

Starting in January, Weiner allegedly used various messaging apps to exchange lewd messages and photos with the unidentified teen; he also allegedly shared his "rape fantasies" with her and told her to dress up like a sexy school girl. The teenager, a high school student in North Carolina who revealed the alleged affair to the Daily Mail, said Weiner knew how old she was at the time; meanwhile, Weiner claimed initially that he was the victim of a "hoax." The teenager, meanwhile, provided screengrabs and photos to the Daily Mail.

The Manhattan U.S. Attorney's office has not confirmed exactly which records they plan to subpoena, but tabloid reports say investigators are planning to look at "cellphone and other records." The US Attorney’s Office in the Western District of North Carolina will also investigate the allegations against Weiner.

Weiner's wife, Hillary Clinton aide Huma Abedin, announced her separation from Weiner after a third sexting scandal was revealed this summer. The couple have a 4-year-old son, Jordan. After it was revealed that Weiner sent a lewd photo featuring his sleeping son to a woman in California, the NYC Administration for Children’s Services opened an investigation.

“It’s horrible and so sad ... I just feel horrible for (Huma) and her son,” Mayor de Blasio said at a press conference yesterday. “It’s not a secret he has a problem, and needs treatment ... I hope he will pursue the treatment he needs,” the mayor said.

In addition to the U.S. Attorney's offices, the NYPD’s Special Victims squad says they're investigating Weiner. “We’re looking to see if a crime was committed in New York and if there’s a complainant,” an NYPD official told the Post.