Rapper Nelly is under criminal investigation for sexual assault in England, reports TMZ.

According to TMZ, the alleged assault took place on December 5 after Nelly’s performance in Essex, England. The alleged victim alleges that after she asked for his photograph, Nelly grabbed her arm, pulled her in his dressing room, “dropped his pants and began masturbating in front of her.” She further claims he tried to pull off her shirt and “put his right hand on the back of her head and his left hand on her shoulder, forced her head down, pushing his erect penis into her mouth.”

As she ran out of the room, she says he called her a “c**t.”

The three-time Grammy-winner denies any wrongdoing.

Included in the TMZ report is a statement from Scott Rosenblum, the rapper’s lawyer:

These allegations arose after Ms. Green amended her suit for money to include a reference to these claims. The fact that the police are investigating these claims is not new information and Nelly welcomes a thorough investigation. Nelly is confident that once investigated, these claims will be determined to be disingenuous.

Nelly was accompanied by his girlfriend during this tour and she was at his side throughout. It is important that police investigate every allegation of this nature.

Nelly’s real name is Cornell Iral Haynes Jr, and back in October he was arrested for an alleged rape that took place on his tour bus. Although she went to the Seattle police, the case was quickly dropped when the accuser refused to participate in the investigation. In a letter sent to TMZ from her attorney, the 21-year-old did not recant her allegation, but said that she did not “feel safe enough to pursue criminal charges against a celebrity for an alleged rape.”

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