A 23-year-old motorcyclist sustained critical injuries in a single-vehicle crash in Waianae late Thursday.
Police said the man was traveling west on Lualualei Homestead Road at about 11:15 p.m. when he lost control of the motorcycle and struck a light pole.
Emergency Medical Services treated and transported him to a hospital in critical condition. Police said he was not wearing a helmet at the time of the crash.
Speed was a factor, police said, but alcohol was not involved.
Police are continuing to investigate the crash.