HOUSTON — A man was killed when he was struck by a vehicle in northeast Houston early Friday, police said.

The driver did not initially stay at the scene, according to Houston police.

The incident was reported at about 5:30 a.m. on Tidwell near Lockwood.

Witnesses told police the man was acting erratically and running back and forth across the street before sunrise. That's when a Nissan Frontier struck the man. Witnesses said the pickup that struck him briefly stopped but kept eventually going.

They said the man may have been having a psychotic event, and may have approached cars acting erratic running down the road, reported KHOU 11's Michelle Choi.

At least one witness reported hearing gunfire, although police have not yet confirmed there were any shots fired. Police are investigating not just at the scene of the crash but also at a nearby motel where the victim was apparently staying.

Police later said the driver who hit the man returned to the scene and is cooperating in the investigation. At this time no charges or names have been released.

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