STOCKTON (CBS13) – Police in Stockton are asking the public to help find a vehicle that may have been involved in a fatal hit-and-run crash.

Around 4:50 a.m. Thursday, Stockton police officers responded to an injury collision at West Charter Way and the San Joaquin River Bridge. There, officers found a bicyclist who had been hit by a vehicle. The bicyclist was pronounced dead at the scene. The driver cooperated with police, according to a Stockton Police Department statement.

READ MORE: 'He Had To Watch... As This Monster Did What He Did': Sacramento Family Of Texas Shooting Survivor Speaks

(photo provided by: Stockton PD)

A second vehicle described as a newer, red Volkswagen Beetle, allegedly struck the bicyclist but police say it’s unknown if the driver knew they struck the rider.

READ MORE: Man Found In Car Intoxicated, Arrested For DUI In Lodi

ALSO: Bicyclist Killed By Suspected DUI Driver In Manteca

Officers ask anyone who witnessed the incident to call them at (209) 937-8377.

MORE NEWS: Man Arrested After Running Stop Sign Then Fleeing From Police

This is an ongoing investigation.