Cruise’s Driverless Taxi Service in San Francisco Is Suspended

California regulators on Tuesday ordered Cruise, a General Motors subsidiary, to stop its driverless taxi service in San Francisco after a series of traffic incidents, including a collision with a fire truck.

The decision by the state’s Department of Motor Vehicles followed a turbulent three months for Cruise. In early August, over the objections of San Francisco officials, state regulators allowed Cruise to expand its service in the city. But a little more than a week later, the D.M.V. told Cruise to cut its fleet in the city in half.

As of Tuesday, Cruise had 50 driverless cars running during the day and 150 at night.

“When there is an unreasonable risk to public safety, the D.M.V. can immediately suspend or revoke permits,” the agency said in a statement. It did not say how long the suspension would last.

In a post on X, formerly known as Twitter, Cruise said that it would pause its driverless operations in San Francisco and that it was working on enhancements to the driverless cars’ technology.

This is a developing story. Check back for updates.