India, Dec. 21 -- Nearly one-third of San Francisco was hit by a power outage on Saturday morning, with disruptions stretching well into the day. Large parts of the city remained without electricity, forcing residents to carry on in near-total darkness, with some even celebrating birthdays on unlit streets.

The outages also brought traffic to a standstill.

With stoplights shut down, congestion worsened as autonomous robotaxis were seen stalled or blocking intersections across the city, The San Francisco Standard reported.

Several videos circulating online showed these vehicles compounding gridlock and nearly triggering accidents.

Waymo, an autonomous vehicle company owned by Google's parent firm Alphabet, operates self-driving robotax...