At least four motorists were injured, one critically, in a three-vehicle collision Thursday morning on Route 30 in Unity.

Two women were taken by ambulance to Forbes Hospital in Monroeville, one in critical condition and the other in stable condition, following the crash near the Theatre Street intersection, according to Mutual Aid Ambulance Service spokesman Shawn Penzera.

He said a man and woman, who were in stable condition, were taken by ambulance to Independence Health Latrobe Hospital for treatment.

All three vehicles were towed from the scene of the crash, in which a Chevrolet Monte Carlo was facing eastbound in the westbound lane and a Ford F-150 was facing east in the eastbound lane. A Chevrolet Trailblazer facing west in the westbound lane also was towed.

Unity firefighters responded to the collision, which occurred shortly before 7:30 a.m., a Westmoreland County Public Safety supervisor said.

A section of Route 30 was closed between Theatre Street and the Route 30 Shoppes Plaza until about 11 a.m., while the wreckage was cleared and state police at Greensburg investigated.

Additional details from state police were not available.