3 dead including police officer, pregnant woman in ambush attack near Pittsburgh

Police vehicles line streets of the Canonsburg, Pa., neighborhood where two Canonsburg police officers were shot when they responded to a domestic call early in Canonsburg, Pa., Thursday, Nov. 10, 2016. (AP Photo/Gene J. Puskar)

One of two western Pennsylvania police officers "ambushed" and shot while responding to a domestic situation has died. Also dead in the attack are a pregnant woman and the suspect, according to CBS Pittsburgh.

Washington County Coroner Tim Warco didn't immediately identify the slain Canonsburg officer pending notification of relatives, though reports stated Scott Leslie Bashioum was the officer who died.

State police Trooper Melinda Bondarenka told reporters the incident began at 3:14 a.m. when the Canonsburg officers responded to a report of a domestic dispute.

The officers were "ambushed upon their arrival" and immediately shot, Bondarenka said.

The surviving officer was flown to a hospital in Pittsburgh, Warco said. His name and condition weren't immediately released.

Police and SWAT teams have been seen near at least two homes in the borough about 20 miles southwest of Pittsburgh. It's not clear whether the suspect was in either of those homes.

He was identified as Michael Cwiklinski.

The Canon-McMillan School District canceled classes Thursday because of the heavy police presence, and the nearby Chartiers-Houston School District was operating on a two-hour delay.

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