WESTERLY, R.I. (WPRI) — An investigation is underway after a man crashed his car into the Pawcatuck River Monday evening, according to Westerly Police Chief Paul Gingerella.

The chief said the 87-year-old was driving on Coggswell Street in Stonington prior to the crash, though his car ended up landing on the Westerly side of the river.

The man was rescued from his submerged vehicle by Westerly firefighters. Gingerella said if it weren’t for their quick thinking, the man likely wouldn’t have made it out alive.

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Gingerella said the man was the only person in the car at the time of the crash. He’s now back home after being treated at the hospital for non-life-threatening injuries.

The cause of the crash is still unclear. Gingerella said the driver dosen’t remember much of what happened prior to the crash.

The car was lifted out of the river by crane Tuesday afternoon.

The cause of the crash remains under investigation.