A 34-year-old man died Saturday night after a solo motorcycle crash on Ala Moana Boulevard in the Waikiki area.

At about 9:50 p.m., Honolulu police said a man on a motorcycle was traveling west on Ala Moana Boulevard when for unknown reasons he traveled left of the roadway, hit the concrete center divider and was ejected from the motorcycle and collided into a streetlight pole.

The police said the man was pronounced dead at the scene. He was wearing a helmet at the time of the collision.

Police said speed appears to be a factor in the crash, but it was unknown if alcohol or drugs were factors.

This was the ninth traffic fatality on Oahu this year compared with 12 at the same time last year. The investigation is ongoing.