2 construction workers killed in crash involving tractor-trailer on Route 30 in Chester County, Pennsylvania

Two construction workers were killed in a multi-vehicle crash on the Route 30 Bypass in Chester County, Pennsylvania, on Monday night, according to Pennsylvania State Police.

The crash happened shortly before 7 p.m. in Valley Township, near Coatesville, police said in a news release.

Investigators believe a tractor-trailer driving in the work zone caused the crash. The two workers were implementing a traffic pattern in the work zone when they were struck.

The people who died were working for the contractor Allan Meyers on a PennDOT project resurfacing the road.

A total of four vehicles were involved, police say. Two other workers were taken to the hospital and have been released, according to Allan Myers.

Images from Chopper 3 showed a tractor-trailer that crossed over the guardrail on the road into a wooded area. The truck has since been removed from the scene.

The bypass fully reopened before noon Tuesday.