Police are on the lookout for a man they say attempted to rob the Triple Diamond Lounge.
The lounge is located at 1009 Clark Avenue.
Witnesses told police a black male walked into the lounge armed with a gun and demanded money.
At some point, the gun went off inside the building and the suspect ran.
He may have gotten into a black or green Volvo or Mercedes.
The suspect did not get any cash before he fled the building.