Honolulu police have opened an attempted murder investigation involving an unresponsive 30-year-old man who was found lying on the side of a roadway in Haleiwa Monday night.
Police said an individual flagged down police after he observed the man on the ground with a suspicious head injury at about 8 p.m.
Emergency Medical Services personnel responded to the 66-500 block of Kamehameha Highway. Paramedics administered treatment to the victim and took him in critical condition to a hospital.
Police have not made any arrests at this time.