Toronto police say two men are dead and at least one other is seriously injured after a shooting in an unlicensed after-hours club.

Det. Shawn Mahoney says about 30 people were inside the club (at College Street and Augusta Avenue) when the shooting happened at 5 a.m. Friday.

He says two men were killed in the incident, both believed to be about 40 years old.

Mahoney says a third man was taken to hospital where he underwent surgery.

He says a fourth man walked into hospital, and police believe he may have been injured in the same incident.

The detective says police are in the process of telling the victims' families about the incident.