UPDATE: PennDOT said I-81 north is closed between exits 52 and 57 due to the overturned tractor-trailer, which was believed to be hauling tools. A minor gas spill was also reported. As of 8:26 p.m., one northbound lane has reopened.

A tractor-trailer crash has shut down the northbound lanes on Interstate 81 Monday evening, dispatch said.

The tractor-trailer crash happened around 5:17 p.m. at mile marker 53.8 in Middlesex Township, according to Cumberland County dispatch.

Dispatch said the tractor-trailer, which was the only vehicle involved in the crash, blocked the northbound lanes. It was reported that the driver was trapped inside the tractor-trailer.

PennDOT spokesperson Fritzi Schreffler said heavy rubbernecking is slowing down southbound traffic and that Route 11 is seeing inc

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