Sean "Diddy" Combs' legal team was notified last week by federal authorities in the Southern District of New York that he is a subject of an ongoing criminal investigation, according to two sources familiar with Combs' ongoing legal troubles. The same sources confirmed that a federal grand jury is hearing evidence as part of the investigation but there is no indication that charges are imminent. A subject of an investigation is someone who is within the scope of a criminal investigation, according to legal experts. An individual is designated a target when prosecutors likely intend to seek an indictment from the grand jury against the person. Combs initially denied Ventura's allegations of assault and sex trafficking, which she described in a federal lawsuit filed in November.