Approximately 20,500 customers were affected. The LADWP said the problem was at an electric distribution station.
There were 13 reports of people trapped in elevators. Traffic lights throughout the area were out, causing major traffic jams.
The approximate area of the outage roughly comprised Olympic to the south, Wilshire on the north, Barrington on the west and Overland to the east.
The Los Angeles Police Department issued a tactical alert shortly after 9 p.m.