Philadelphia police are searching for three suspects wanted in connection with the mass shooting in Grays Ferry that killed three men.

Three people were killed and nine others were shot during a gathering in Grays Ferry early Monday morning, police said. Officers were responding to a call nearby when they heard gunfire on the 1500 block of South Etting Street shortly before 1 a.m.

Another person was injured while fleeing the gunfire at Etting and Dickinson Streets in the Grays Ferry section of South Philadelphia.