The Huntington Beach Police Department is looking for the driver of a sedan-style black Dodge Charger or Magnum that collided with a motorcyclist about 2 p.m. Thursday.
The driver fled the scene after the collision at Beach Boulevard north of Slater Avenue, according to a news release issued by the Police Department.
The 29-year-old cyclist was found in the roadway and was transported to UCI Medical Center with serious injuries, the release said.
The suspect was last seen driving northbound on Beach. Anyone with information about the incident is asked to call the department's traffic bureau at (714) 536-5670.