Chris Brown/Twitter

Chris Brown is at the center of another violent outburst. According to reports, the R&B singer fought Toronto rapper Drake inside of New York City's W.i.P. club Wednesday night. They reportedly brawled over Rihanna, Brown's ex-girlfriend and Drake's one-time fling.

A NYPD spokesperson told ABCNews.com that cops were called to W.i.P at 4 a.m. Thursday regarding disorderly conduct. When they arrived, they found a large group outside the club. One man and four women sustained non-life threatening injuries. No charges were filed and the investigation is ongoing.

"Chris, Karrueche [Brown's girlfriend] and his friends were victims of a brutal attack last night at WIP," Brown's publicist told ABCNews.com. "They sustained several injuries. Chris and his party are cooperating with NY authorities who are pursuing this incident further."

In a statement to ABCNews.com, Drake's publicist said, "Drake did not participate in any wrongdoing of any kind last night at W.i.P. He was on his way out of the club when the altercation began. He did not engage in any activity which resulted in injury to person or damage to property."

The R&B stars were at the club to celebrate Teyana Taylor signing to Kanye West's G.O.O.D. Music label. But when Brown sent a bottle of champagne to Drake as a peace offering, Drake reportedly returned the favor with a note saying, "I'm f*****g the love of your life, deal with it."

According to Brown's Twitter account, a member of Drake's camp threw a bottle at Brown and then hid behind security guards.

"Ok! N****s stand behind security!!!! Ok! U don't pay them enough!" Brown tweeted. He later deleted the message. He also deleted a photo of himself that showed a gash on his chin.

Brown's girlfriend Karrueche Tran, a model, sent out a mysterious tweet following the incident saying, "Wreckless love I tell you."

Brown was charged with felony assault after beating and bruising Rihanna, his then-girlfriend, in 2009.