An unplanned outage knocked out power to thousands of customers in San Francisco’s Sea Cliff and Outer Richmond neighborhoods Sunday morning, according to Pacific Gas and Electric Co. 

A PG&E representative said power went out around 8:54 a.m. for more than 3,600 customers in the area, which includes residential neighborhoods and the Lands End hiking trails. 

The company said it restored power to all customers by 10:26 a.m., about two hours earlier than anticipated.  

“The cause is still being investigated,” a PG&E representative said. 

The San Francisco Department of Emergency Management posted on X about the “large, unplanned” outage at 9:40 a.m. 

In the wake of a December blackout that impacted a third of the city, San Francisco officials are still pressing regulators to investigate “the recurring nature of PG&E’s failure to provide safe and reliable service in San Francisco.”