Chris Brown arrested for assault

Chris Brown/Twitter

Brown reportedly attacked a man outside the W Hotel in Washington D.C. at 4:25 a.m., police said.

The singer, 24, and bodyguard Christopher Hollosy, 35, were reportedly arrested.

Brown is still on probation for felony domestic violence after attacking former girlfriend Rihanna in 2009.

An arrest may be seen as a violation of probation, and could get him jail time.