Toronto homicide detectives are investigating the death of a man who was found with critical injuries in the Annex.

Toronto Police said officers located a man in his 20s with life-threatening injuries in the Bloor St.-Madison Ave. area around 12:30 a.m. Sunday.

Emergency personnel rushed the injured man to a hospital, where he was pronounced dead.

Officers are urging anyone with information to call 416-808-5300.

Police did not say how the man sustained his injuries. CP24 reported there was a heavy police presence in the area Sunday as officers investigated what happened.