A 36-year-old Waipahu man who was critically injured in a motorcycle accident on H-3 Saturday afternoon was speeding, police said.

According to a police report:

The man was on a Harley Davidson bike one and one-half miles west of the tunnel heading townbound at a high rate of speed when he lost control off the bike. The bike overturned and the man, who was not wearing a helmet, was thrown onto the roadway.

The motorcycle then collided with a pickup truck driven by a 62-year-old man from Kailua who was not harmed.

The motorcyclist was taken to The Queen's Medical Center in critical condition.

The accident, which occurred at 12:56 p.m. Saturday, is under investigation.

Police said alcohol did not appear to be a factor.