NEW YORK (AP) — New York City police are investigating whether shots were fired inside a nightclub during a bottle-throwing brawl involving singer Chris Brown and Drake’s entourage.

Some witnesses report hearing shots during the dust-up Thursday morning at W.i.P in SoHo, but no one reported seeing a gun. Police are looking into the claims.

Chris Brown, his girlfriend and his bodyguard were among eight injured during the fight inside the club. Police say members of Drake’s entourage stopped Brown as he was leaving. The fight escalated and bottles were thrown.

Brown spoke with police; Drake has not. Drake’s representatives say he was on his way out when the fight broke out and did not injure anyone.

A manager of a club in the same building was arrested Friday on an unrelated violation.