PITTSBURGH (KDKA) — An accident in the Squirrel Hill Tunnel tied up traffic Sunday afternoon.

Four cars were involved in the pile-up, including a jeep, two sedans and a PT Cruiser.

According to witnesses, the jeep ended up on its side.

There were no reports of any injuries.

There is no word yet on what caused the crash.

Stay with KDKA for the latest details.

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