UPDATE: Power restored to all Brisbane customers, 4,500 still affected in SSF

SOUTH SAN FRANCISCO, Calif.

Nearly 20,000 customers were affected in the South San Francisco and Brisbane areas by the outage which was reported at 7:14 a.m. At this time, power has been restored to all Brisbane customers, but 4,500 South San Francisco are still impacted.

The cause of the outage is unknown.

Stay with ABC7NEWS.COM for the latest on this developing story.

>> More: PG&E outage map

Copyright © 2019 KGO-TV. All Rights Reserved.