The Latest on a deadly shooting at a backyard party in a Pittsburgh suburb (all times local):

12:15 p.m.

Community members are leaving balloons and saying prayers in front of the Pennsylvania house where an ambush at a backyard cookout killed six, including a pregnant woman and her fetus.

Flowers, stuffed animals and candles adorned the home's front porch Friday in Wilkinsburg. One woman dropped to her knees in prayer as her school-age daughter stood by.

Pittsburgh police say they have no new information to release in their investigation into Wednesday night's deadly ambush attack.

One man and four women were killed by two gunmen who police said worked as a team.

Officials are urging witnesses to come forward. Police have said they have no suspects in the shooting.

Religious leaders gathered in front of the home Thursday night at a vigil calling for an end to such violence.

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8 a.m.

Police near Pittsburgh are seeking to identify suspects in a deadly ambush attack at a backyard cookout by two men who methodically shot and killed six, including a pregnant woman and her fetus.

A prosecutor says the gunmen appeared to have targeted one or two of the victims. District Attorney Stephen Zappala says drugs haven't been ruled out as a motive.

One man and four women were fatally shot. Officials ruled the death of the pregnant woman's fetus a homicide Thursday, raising the death toll to six.

A man opened fire on the partygoers Wednesday night, driving them in the direction of an accomplice who gunned them down with a rifle.

Police have no suspects and a county executive is urging witnesses to come forward.