Chris Brown Investigated For Assault

Chris Brown is being investigated by the LAPD for an alleged assault on a female.
 

According to police, Brown and a woman were arguing inside of a vehicle around 12:30 this morning when suddenly things allegedly turned violent. The woman suffered visible injuries and she identified Chris Brown as the attacker.
 

“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.”
 

The LAPD say they received a 911 call reporting the disturbance. “If police locate Brown, yes, he’s subject to arrest,” Officer Harding added.
 

The LAPD is now conducting an investigation into the incident.
 

Chris and his girlfriend Rihanna, have cancelled their appearances at tonight’s 2009 Grammy Awards following the violent incident. They were scheduled to perform at the Grammys, but this statement was released Sunday evening: "We have just been informed that Rihanna will not be attending tonight's 51st Annual Grammy Awards. We're sorry she is unable to join us this evening."
 

When asked about Rihanna's well being, her rep told PEOPLE, "Rihanna is well. Thank you for concern and support."