Hawaii Island police are investigating a Hilo traffic collision that left one man dead.

On September 2, South Hilo patrol officers responded to a single-vehicle traffic collision on Kilauea Avenue, and determined that a 1990 Yamaha motorcycle was traveling southbound when it crossed the center line and crashed head-on into a utility pole.

The driver of the motorcycle, a 45-year-old male from Mountain View, was not wearing a helmet and was unresponsive at the scene of the collision. He was transported to Hilo Medical Center by ambulance where he was later pronounced dead.

The identity of the victim is being withheld at this time pending positive identification and notification of next of kin.

At this time speed and inattention appear to be primary factors in the crash.

An autopsy has been ordered to determine the exact cause of death. The East Hawai’i Traffic Enforcement Unit has initiated a Coroner’s Inquest investigation as a result of the traffic collision. Police are asking that anyone who may have witnessed the accident or has information to contact Officer Jared Cabatu at (808) 961-2339 or via email at Jared.Cabatu@hawaiicounty.gov.