The Latest: Witnesses sought in ambush that left 5 dead

Allegheny County detectives look over the scene of a shooting on Thursday, March 10, 2016 in Wilkinsburg, Pa. Police say multiple people were killed in the shooting late Wednesday and several were injured in suburban Pittsburgh. (AP Photo/Keith Srakocic) Allegheny County detectives look over the scene of a shooting on Thursday, March 10, 2016 in Wilkinsburg, Pa. Police say multiple people were killed in the shooting late Wednesday and several were injured in suburban Pittsburgh. (AP Photo/Keith Srakocic)

By Associated Press March 10, 2016 2 min read

WILKINSBURG, Pa. (AP) – The Latest on a deadly shooting at a backyard party in a Pittsburgh suburb (all times local):

10:05 a.m.

A county official is urging witnesses to come forward in a shooting at a backyard party that left five people dead and three wounded in suburban Pittsburgh.

Four women and a man were killed late Wednesday during the party in Wilkinsburg. Two others are in critical condition.

Allegheny County Executive Rich Fitzgerald says if violence is to be stopped, witnesses need to come forward.