A crash involving a tractor-trailer backed up traffic along Interstate 79 Wednesday morning.
It happened just after 8:15 a.m. in Franklin Park near the Nicholson Road Exit.
Trooper Rocco Gagliardi with Pennsylvania State Police said a tractor-trailer traveling in the northbound lanes crossed over, hitting vehicles in the southbound lanes.
At least one person was injured but none of the injuries was life-threatening, he said.
Both directions reopened to traffic after 10 a.m.
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