The accident occurred around 12 p.m. Sunday in the northbound lanes of the highway near mile marker 56.9 near Chesterfield Township.
All northbound lanes were blocked for a period of time and traffic was being diverted off Exit 4.
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Credit: Antoine Johnson
Action News viewer Thomas Vandergrift sent a photo of children playing on top of cars as the roadway remained shut down.
Around 1:42 p.m., New Jersey State Police say the left two lanes of the inner roadway and right two lanes of the outer roadway reopened.
There is no word on injuries.