A truck driver from McKeesport was killed following a seven-vehicle crash on Washington Boulevard that also injured several others.

Robert Carson, 61, was pronounced dead at 1:59 p.m. at UPMC Presbyterian, the Allegheny County medical examiner's office said. A cause of death was not ruled.

Police said Mr. Carson may have had a heart attack before the crash, which occurred around 12:30 p.m.