Video: U.S. Postal Service Tractor-Trailer Jackknifes, Blocks Interstate 95 in NE Philadelphia

A jackknifed tractor-trailer slowed Friday morning traffic to a near standstill for hours along Interstate 95.

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The big rig, with United States Postal Service emblems on the side, crashed in the northbound lanes just before the Academy Road Exit in Northeast Philadelphia around 5:45 a.m. causing a fuel spill.