SOUTH BRUNSWICK, NJ - Police are investigating the cause of an accident Friday morning that sent eight people to the hospital and closed Route 1 north for hours.

Investigators were taking measurements and photographs at the scene of a violent accident at the intersection of Deans Lane and Route 1.

The accident took place around 5:13 a.m. and several people were taken to the hospital, some with serious injuries, according to officials.

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Route 1 north was still closed to traffic at 9:30 a.m. as investigators worked to document the scene, and finally re-opened around 11:30 a.m.

We will update this story when more information becomes available.