A man was shot to death outside a pool hall in Hamilton following an argument early Saturday, police say.

The shooting happened in front of Boulevard Billiards, 303 York Blvd., near Queen Street North, Hamilton police said in a news release on Saturday. Emergency crews were called to the scene at about 1:35 a.m.

When police arrived, they found a man on the sidewalk outside the establishment, suffering from an apparent gunshot wound. He had no vital signs. Paramedics pronounced him dead at the scene.

Police said they have tentatively identified the victim, but have not yet released his name because they are waiting for autopsy results. An autopsy is being done at Forensic Pathology Unit at the Hamilton General Hospital on Saturday.

Homicide detectives have interviewed a number of witnesses. The man is Hamilton's 10th homicide victim of the year.

"As a result of statements obtained, police are now looking for two male suspects who were seen arguing with the victim prior to him being shot," police said in the release.

Heavily armed Hamilton police officers stand outside the pool hall and a lounge after the shooting early Saturday. (David Ritchie/CBC)

Police said they do not know the motive for the shooting and no weapon has been found.

Forensic investigators are still collecting evidence at the scene and are expected to be there throughout the day on Saturday.

Police comb area for witnesses, video

Officers have been canvassing the area for more witnesses and surveillance camera video from nearby businesses.

The building where the pool hall is located also contains a nightclub called Coco Bongo Lounge. A Toronto man, 33, was stabbed to death there in September 2017.

The first suspect in the latest homicide is described as a male, with no facial hair, who was wearing a dark toque, dark hoodie and dark puffy jacket.

The second suspect is described as a male who was wearing a dark hoodie, dark pants and dark jacket.

Anyone with relevant information or surveillance camera video is urged to call Hamilton police.