PLEASANTON, Calif. - About 4,200 customers of PG&E in parts of Pleasanton and Dublin were without power Saturday night, the utility said.
The outage began at 6:50 p.m., PG&E spokesperson J.D. Guidi said.
Repair crews were at work, but there was no estimate of when service would be restored, he said.
The cause of the interruption was under investigation, he said.