Chris Brown & Rihanna

Chris Brown and Rihanna were scheduled to perform at the Grammys separately on Sunday night, with each nominated for a handful of awards. Word emerged just before the broadcast that neither would be attending, along with news that Brown had turned himself to Los Angeles police. Detectives investigating the felony battery charges booked the singer for criminal threats in the case and released him on $50,000 bail, saying that additional charges may be filed.

Chris Brown and his girlfriend Rihanna were no-shows for Sunday night’s Grammy Awards.

Spokespeople for Rihanna and Brown could not be reached for comment at press time.

According to the LAPD, the 19-year-old R&B singer and an unidentified woman were in a vehicle in the Hancock Park neighborhood of Los Angeles early Sunday when they began arguing. Police said the "woman suffered visible injuries and identified Brown as her attacker." Officers said Brown was not present at the scene when they arrived.

“The identity of the victim will not be released,” Officer April Harding tells People. “Any victim who’s involved in a domestic violence incident is entitled to confidentiality.”

Around 12:30 a.m. on Sunday, Chris and an unnamed woman were arguing inside of a vehicle when suddenly things turned violent. According to TMZ, the woman suffered visible injuries and identified Chris as her attacker.

Earlier Saturday night, Chris and girlfriend Rihanna were at the Clive Davis pre-Grammy Gala in Beverly Hills. Rihanna’s rep says, “Rihanna is well. Thank you for concern and support.”