Freight train derails in New Jersey

Authorities are responding to a freight train derailment in New Jersey.

A call about the train with three tank cars on their sides near Tremley Point Road in Linden came in before 8 a.m. Thursday.

Chopper 4 was over the scene, just off the New Jersey Turnpike.

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Union County hazmat teams were called out as a precaution. No injuries were immediately reported.

NJ Transit said its commuter trains weren't affected.

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It wasn't clear how long cleanup could take.