Washington, March 10: Five people were killed after a shooting at a home in Pennsylvania state, the media reported on Thursday.
The incident took place on Wednesday night in Wilkinsburg borough of Allegheny county, CNN reported.
According to police, there were multiple gunmen involved.
A senior police official said a "backyard party" was underway at the time of the shooting.
The victims were four women and a man. Three other people were hospitalised. Two of them are in critical condition. Eyewitness say they heard atleast 20 shots being fired.
Dozens of shell casings littered the pavement of an alleyway at the scene, media reports said. Police officials however have not released any statement yet.