Dana Cronin

PG&E, the city's utility company, is investigating the cause of the outage.

The San Francisco Fire Department responded to a fire Saturday afternoon at a PG&E substation in the city, but says it's unclear whether that was the root cause.

The outage paused transit services and caused traffic jams across the city due to malfunctioning traffic lights and driverless taxis stuck in intersections.

For NPR News, I'm Dana Cronin in San Francisco.

Food banks here in the Bay Area are ramping up efforts in response to the hundreds of calls they say they've received so far from people seeking relief.

Kaitlin Sly is the CEO of the food bank of Contra Costa and Solano.

She says it's unclear what happens next, after the Trump administration was ordered to fund SNAP.

Sly says her organization is opening additional distribution sites and deploying more food and personnel to meet the increased demand.

For NPR News, I'm Dana Cronin in San Francisco.