Chris Brown and a bodyguard were arrested this morning (27/10) and charged with felony assault, the Washington Metropolitan Police Department stated.
The singer and bodyguard Christopher Hollosy were allegedly involved in an altercation with another man outside the W Hotel at 4:25 a.m., police stated.
The two were taken into custody and were being held at the 2nd District police station, police stated.
The alleged victim was taken to a hospital for treatment of injuries, police spokesman Anthony Clay told CNN.
Brown, 24, was in Washington to host a "homecoming party" at The Park at Fourteen nightclub Saturday night, according to his Twitter feed, just four blocks away from where he was arrested this morning.
His representative and lawyer did not immediately respond to CNN's calls for comment Sunday.
Brown is on probation in California for a felony domestic violence conviction involving his former girlfriend, Rihanna. Any arrest could be considered a violation of that probation, which could result in jail time.
Prosecutors filed probation violation charges against him twice in the past year, resulting in the judge ordering him to complete an additional 1,000 hours of community service.
Probation rules require Brown to stay out of all legal trouble. Even an arrest that does not lead to a conviction could result in a probation violation charge.
He is scheduled to appear before Los Angeles County Superior Court Judge James Brandlin on November 20 for a probation status hearing.