3 injured in crash involving multiple trucks on Pa. Turnpike in Bensalem Twp.

BENSALEM TWP., Pa. (WPVI) -- Three people were injured in a crash involving multiple trucks along the Pennsylvania Turnpike (I-276) in Bensalem Twp.

The wreck shut down the westbound lanes of the highway for several hours on Tuesday, but traffic is now flowing again.

Multiple tractor-trailers were involved in a crash on I-276 in Bensalem, Bucks County on Tuesday.

It happened at milepost 351.5WB Tuesday morning near Lincoln Highway.

Four vehicles were involved in the crash, including three tractor-trailers and a box truck. One of the trucks was leaking fuel and a hazmat team was called to the scene.

Turnpike officials say this wreck happened in the backlog of another crash.

Chopper 6 was over the Turnpike shortly after the crash, where one of the tractor-trailers crashed into the back of a box truck.

Another tractor-trailer crashed into the median.

A third tractor-trailer could be seen jackknifed on the interstate, blocking all lanes.

There was no immediate word on the severity of the injuries.

The cause of the crash remains under investigation.