PORTLAND — A man killed in a motorcycle crash Tuesday morning has been identified as Douglas Starbird, 52, of Oxford, the Portland Press Herald reported.

Starbird was driving on Skyway Drive toward Outer Congress Street, headed in the same direction as an Atlas Van Lines moving truck, when he collided with the side of the truck, then hit the pavement.

He was not wearing a helmet, though one would not necessarily have saved him, Portland police said.

Members of the Portland police traffic unit are still trying to determine what contributed to the collision, although they say excessive speed does not appear to be a contributing factor, the Press Herald reported.

Police ask that anyone who witnessed the crash call them at 874-8532.

The State Police commercial vehicle enforcement unit responded to check out the moving van.