Four people were injured after a six-vehicle crash Friday evening in Union.

State police say traffic was stopped on Route 17 west on the bridge over the Susquehanna River due to a construction barrel in the road and one vehicle could not stop in time before striking another.

In all, six vehicles were involved in the crash. Two operators were taken to Wilson Hospital with non-life-threatening injuries.

Two other operators were injured, but were not taken to the hospital.

None of the passengers in the involved vehicles were injured.

A second crash occurred when traffic stopped for the first crash and one vehicle was rear-ended. No one was injured in the second crash.