A police incident report released Thursday says Christal Shanae Spann and her friends spotted Brown and rapper Tyga leaving the Cameo nightclub early Sunday. Spann told police she saw Brown get into a black Bentley, and she used her phone to take a picture of him sitting in the car.
According to the report, Spann claims Brown grabbed her phone and said "... you ain't going to put that on no website," and drove off.
A police spokesman said Thursday no charges have been filed but the claims are being investigated.
Brown's attorney and a spokeswoman did not immediately respond to requests for comment.