The westbound lanes are closed at Airport Road.
SADSBURY TWP., Pa. (WPVI) -- Two people were injured after a tractor-trailer went off the highway in Chester County.
Authorities responded around 1:10 p.m. Thursday to the Route 30 Bypass in Sadsbury Township
The view from Chopper 6 showed the tractor-trailer hanging off the highway onto Old Mill Road.
A green tractor was also damaged in the incident.
Action News has learned the tractor-trailer veered off the road because the driver hit a tractor cutting grass on the bypass.
Authorities also say the crash caused the big rig to leak diesel fuel into Buck Run Creek. Hazmat crews had to be called in to contain the leak.
There was no immediate word on the conditions of the victims.
The westbound lanes were closed for several hours. The scene wasn't clear until around 5 p.m.