It took firefighters two hours to rescue a dog that was clinging to ice in a New Jersey river.

Raritan River (Flickr user asmathews)

Witnesses said the dog had fallen through the ice and was in the Raritan River in Bridgewater for 30 minutes before help arrived Wednesday night.

North Branch Fire Chief Dave Hickson tells the Courier News of Bridgewater two firefighters were tethered together and turned a ladder on its side to reach the Labrador/Rottweiler mix.

The dog was taken to a veterinary hospital, where it was warmed up.

The dog didn't have a collar. But a microchip helped officials identify its owner.

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