The motorcyclist was transported to hospital with life-threatening injuries.

San Francisco, CA. – A motorcyclist was seriously injured after colliding with a vehicle on Saturday evening in San Francisco.
According to the San Francisco Police Department, the accident occurred at the intersection of 8th and Howard Streets at around 5:49 p.m.
A motorcycle reportedly collided with a truck at the intersection in unclear circumstances.
The motorcyclist was transported to hospital with life-threatening injuries.
Additional information about the accident was not provided.
An investigation into the accident is ongoing.