Police interview Chris Brown after alleged beating

LOS ANGELES -- Records show police have detained Chris Brown over an alleged felony battery incident involving the R&B singer only hours before he was scheduled to appear at the Grammy Awards.

Los Angeles police officer Karen Smith says Brown walked into a police station around 7 p.m. and was being interviewed by detectives.

Jail records later indicated that Brown had been booked and was being held on $50,000 bail.

Smith said she had no details about his arrest.

Police began investigating the 19-year-old singer after receiving a report from a woman who says she was attacked by him early Sunday in the Hancock Park neighborhood. Officers say Brown wasn't at the scene when they arrived.

Both Brown and his girlfriend, fellow singer Rihanna, were no-shows for Sunday night's Grammy Awards. Both were scheduled to perform. Their absences caused an abrupt shuffling of the performances at the show.