1 dead after vehicle slams into tractor-trailer in Chester

CHESTER, Pa. (WPVI) -- A driver was killed on I-95 in Delaware County when police say he rammed into the back of a stopped tractor trailer.

It happened in the southbound lanes near route 322 in the city of Chester at midnight.

Police said the truck had its hazard lights on and was pulled over near the median.

The cause of the crash is under investigation.