It all began around 2 p.m. in Cranbury Township, Middlesex County and continued southbound into Westampton Twp.
The crash happened near the Mount Holly exit.
The view from Chopper 6 showed a heavily-damaged vehicle on its roof with debris scattered around the scene.
One person was taken away by a medical helicopter. There was no immediate word on specific injuries.
Police say the 30 mile chase began when officers tried to pull the driver over for a moving violation.
An investigation into this incident continues.
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