A driverless Waymo car collided with a cyclist in San Francisco, causing minor injuries to the cyclist and leading to a review of the incident by California's auto regulator. 

Per Reuters, Waymo said its vehicle had stopped at a four-way intersection when a large truck crossed the intersection in its direction. At its turn to proceed, the Waymo car moved forward. 

However, the cyclist, who was obscured by the truck which the cyclist was following, took a left turn into the Waymo vehicle's path. When the cyclist was fully visible, the Waymo's vehicle braked heavily, but wasn't able to avoid the collision.

The incident raised questions about the accuracy, reliability and safety of Waymo's self-driving system.