Tractor-trailer rollover reduces traffic to one lane on I-79 near Route 51 exit for most of Monday

ROBINSON TOWNSHIP, Pa. — UPDATE 4:20 P.M.: The crash has been cleared and the lane restriction lifted, per PennDOT.

A tractor-trailer has overturned on I-79, creating some traffic backups in the area.

Northbound I-79 is currently down to one lane just south of the Route 51/McKees Rocks exit off-ramp.

Emergency crews are currently on scene.

This is a developing story. Check back for updates as more information becomes available.

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