Two gunmen ambushed a backyard party near Pittsburgh on Wednesday, killing at least five people and injuring several, media and police said.
Four women and one man were shot and killed, and three more were wounded in the attack at a residential neighborhood in Wilkinsburg, about 8 miles (13 km) east of the city, news station WPXI said.
"I heard at least 20 shots," a witness, Kayla Alexandra, told WPXI. The shooters fled after the ambush and were still at large, the news station added.