CONTRA COSTA COUNTY, California - The California Highway Patrol says a motorcyclist was killed in an early Tuesday morning crash on the Benicia Bridge after he lost control of his vehicle and collided with a semi-truck.

Motorcyclist killed

What we know:

The CHP Contra Costa says the crash on the mid-span of the bridge happened just before 8 a.m.

Officers responded to the crash on the southbound lanes of I-680. They said the motorcyclist, only described as a man, was traveling at a slow speed in the far left lane. When he lost control of his vehicle, officials said he partially landed in another lane and was immediately struck by the left-rear wheels of the semi-truck.

CHP said the motorcyclist died at the scene. No other injuries were reported.

Three lanes of the interstate wer

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