All lanes have reopened hours after a tractor-trailer crash on a portion of I-79 in Allegheny County Sunday afternoon. PennDOT officials first said southbound I-79 was restricted near the I-76/PA Turnpike on-ramp in Marshall Township, Allegheny County, following a tractor-trailer crash. Allegheny County dispatchers said the incident involved two tractor-trailers and was reported before 2 p.m.PennDOT cameras in the area at the time of the crash showed multiple fire trucks and ambulances on the scene. One tractor-trailer also appeared to be turned over. Dispatchers said no injuries were reported. Video shared with Action News 4 showed crews working to get both lanes reopened. Watch video in playfinder above It is unclear what led to the crash. PennDOT officials said at 4:30 p.m., all lanes have been reopened and the crash has since been cleared. Download the WTAE app to stay connected with breaking news. Sign up for our email newsletters to get breaking news in your inbox.

MARSHALL TOWNSHIP, Pa. —

All lanes have reopened hours after a tractor-trailer crash on a portion of I-79 in Allegheny County Sunday afternoon.

PennDOT officials first said southbound I-79 was restricted near the I-76/PA Turnpike on-ramp in Marshall Township, Allegheny County, following a tractor-trailer crash.

Allegheny County dispatchers said the incident involved two tractor-trailers and was reported before 2 p.m.

PennDOT cameras in the area at the time of the crash showed multiple fire trucks and ambulances on the scene. One tractor-trailer also appeared to be turned over.

Dispatchers said no injuries were reported.

Video shared with Action News 4 showed crews working to get both lanes reopened. Watch video in playfinder above

It is unclear what led to the crash.

PennDOT officials said at 4:30 p.m., all lanes have been reopened and the crash has since been cleared.

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