PORT HURON, Mich. (AP) — One person was found dead Thursday inside a pickup truck submerged in the St. Clair River in Port Huron, police said.

A U.S. Customs and Border Protection aircraft noticed the vehicle in the river about 10:30 a.m. Thursday, the Port Huron Police Department said.

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The vehicle might have entered the river several days ago, investigators said.

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The identity of the deceased was not immediately released.

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