Police are investigating a shooting that left a 40-year-old man dead in West Philadelphia early this morning.

The victim, who has not yet been identified, was outside on 55th Street near Christian at 5:41 a.m. when someone shot him six times, police said. Suffering from three gunshot wounds to the back and three more to the left arm, the man was rushed to the Hospital of the University of Pennsylvania.

Police said the victim was pronounced dead there about three hours later, at 8:43 a.m. No suspects or motive have been determined in the homicide.