MANTECA (CBS13) — Officers are in investigating a fatal crash that happened in the 2400 block of N. Union Road early Sunday morning.

Manteca police say they found a vehicle that had collided with a tree engulfed in flames around 12:55 a.m. Sunday. The adult driver was still inside when officers arrived and a female passenger had been pulled away from the wreck by witnesses.

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Firefighters responded to the scene to extinguish the fire but were unable to extract the driver, who was pronounced dead at the scene.

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Officers say the passenger sustained moderate, non-life-threatening injuries and was taken to an area hospital.

The Multidisciplinary Accident Investigation Team responded to the scene to further investigate the crash.

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Officials are not releasing the identity of the driver at this time.