Pittsburgh Police from Zone 1 responded to the Pittsburgh side of the McKees Rocks Bridge following a head-on collision just before 6 p.m.
An occupant of one vehicle was pronounced deceased at the scene, while a second occupant of the same vehicle was transported in critical condition. The driver of the other vehicle was taken to the hospital in stable condition. Both victims were transported by mutual aid EMS units from outside the city.
The McKees Rocks Bridge is closed in both directions until further notice.
The Pittsburgh Police Collision Investigation Unit is investigating the cause.