WASHINGTON (AP) — Chris Brown was arrested early Sunday in Washington, D.C., after a fight broke out near the W Hotel, police said, complicating an already snarled legal history for the Grammy Award-winning R&B singer.

Brown, 24, was charged with felony assault in an incident that started just before 4:30 a.m., D.C. police spokesman Paul Metcalf said Sunday morning. Chris Hollosy, 35, also was arrested on felony assault charges, Metcalf said. Police believe the two men were together during the incident but said they couldn't confirm any relationship between the suspects.

"There was a physical altercation, which resulted in the victim sustaining injuries," Metcalf said.

Brown and Hollosy were being held in police custody until Monday, Metcalf said.

A man was injured in the fight and reportedly taken to a hospital, police said, but they did not identify him or give details on his injuries. It was not clear whether the victim was taken by ambulance or another vehicle. He had been released from the hospital as of early Sunday afternoon, Metcalf said.

The felony charges in the case were based, in part, on the extent of the victim's injuries, police said.

Brown's publicists and attorney, Mark Geragos, did not immediately respond to messages left early Sunday.

Brown was in Washington to perform Saturday night at an event billed as a "Homecoming Weekend" party at a downtown club. He tweeted about the party Saturday. Howard University spokeswoman Kerry-Ann Hamilton said Sunday that the party was not sponsored or affiliated with the school, which is celebrating its homecoming.

Brown remains on probation for the 2009 beating of his on-again, off-again girlfriend Rihanna just before the Grammy Awards. The photos of Rihanna's bruised face caused outrage among many fans. Brown pleaded guilty to one count of felony assault as part of a plea deal and received five years' probation.

His probation was revoked briefly earlier this year after a hit-and-run incident, and he was given 1,000 more hours of community service to perform. Prosecutors also accused the singer of failing to perform his original community labor sentence of 1,400 hours as instructed.

Brown, who lives in Los Angeles and is originally from Virginia, has been involved in a number of incidents since the 2009 arrest. He was initially sued for a nightclub brawl that allegedly erupted between his entourage and that of musician Drake, at the time believed to be a paramour of Rihanna.

Brown's arrest could prompt Los Angeles prosecutors to seek a revocation of his probation for the Rihanna beating and ask a judge to impose additional penalties on the singer, including time in jail or prison.

Brown is due back in court Nov. 20 in Los Angeles to update a judge on his probation.

Steve Cron, a Los Angeles criminal defense attorney, said prosecutors and a judge may wait to see how the Washington case plays out before taking any action against Brown.

"Just the fact that some guy says 'he hit me' doesn't mean he's in violation" of his probation, Cron said.

The potential penalties would depend on the exact wording of Brown's sentence, he said.

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Associated Press writers Chris Talbott in Nashville, Tennessee; Anthony McCartney in Los Angeles; and Oscar Gabriel in Washington contributed to this report.