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Vehicles are piled up in an accident, Friday, Feb. 14, 2014, in Bensalem, Pa. Traffic accidents involving multiple tractor trailers and dozens of cars have completely blocked one side of the Pennsylvania Turnpike outside Philadelphia and caused some injuries. (AP Photo/Matt Rourke)
Vehicles are piled up in an accident, Friday, Feb. 14, 2014, in Bensalem, Pa. Traffic accidents involving multiple tractor trailers and dozens of cars have completely blocked one side of the Pennsylvania Turnpike outside Philadelphia and caused some injuries. (AP Photo/Matt Rourke)

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    100 car pile-up on Pennsylvania turnpike

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100 car pile-up on Pennsylvania turnpike

At least 30 people have been injured in crashes on the Pennsylvania turnpike. CNN's Margaret Conley reports.

100 car pile-up on Pennsylvania turnpike

At least 30 people have been injured in crashes on the Pennsylvania turnpike. CNN's Margaret Conley reports.