TOMS RIVER, N.J. (AP) — A pickup truck went through the ice on a river early Sunday, and police found a dead dog but no people inside.

Two men were in custody in connection with the incident, but authorities had not said whether they would face criminal charges. It was unclear if either man was the owner of the dog, a boxer mix.

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A witness called Toms River police around 12:15 a.m. Sunday to report a small truck had just driven onto the frozen river in the Ocean County town. The witness said the truck drove to the center of the river and began spinning around in circles.

Responding officers saw the truck, but it disappeared into the water soon after.

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A Coast Guard helicopter crew responded, and a rescue swimmer who was lowered to the river soon spotted the truck.

State police were notified, and a rescue effort involving several agencies was launched.

The truck was found around 10:20 a.m. about 100 feet off Pine Beach. Crews initially couldn’t see inside because the truck’s windows were tinted.

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Authorities said the truck was still underwater later Sunday because bad weather made it too dangerous to tow it out.

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