Police are asking for help locating a red vehicle car that left the scene of a crash on Moanalua Freeway westbound Sunday afternoon.

The crash, near the Tripler/Puuloa offramp, sent a motorcyclist, a 59-year-old Kapolei man, to the Queen’s Medical Center in critical condition where he remained today, police said. The victim apparently crashed into a guardrail about 1:38 p.m.

According to the Honolulu Police Department, the motorcyclist was seen racing his 1997 Harley-Davidson motorcycle through traffic against a red vehicle. Police said excessive speed was a likely factor.

While police had initially described the car as a Dodge Charger, that description has since been changed, HPD said.

Anyone with information is asked to call the Traffic Division at 723-3413.