TMZ reports that Nelly is being criminally investigated for sexual assault in England over an incident that happened December 5 after his performance at Cliffs Pavilion in Essex.

The accuser claims he took her to his dressing room with her friends, and then asked her to come to the room next door. There, he allegedly “dropped his pants and began masturbating in front of her. She also claims he put his hand on her top and tried pulling it off. She says he also tried kissing her as she tried to bolt from the room.”

TMZ reports the woman says Nelly 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. She says she ran out of the room as he called her a c***.

Essex police told cops they have begun a sexual assault investigation.