Update: Power has been restored.
San Diego Gas and Electric reported four separate outages which swept parts of the County and affected several thousand customers on Sunday were scheduled to be fixed through the afternoon and evening.
According to its website, 433 SDG&E customers were out of power in areas near and in Lakeside, Blossom Valley, Winter Gardens, El Monte and Bostonia as of 2:26 p.m. The first outage occurred about 12:20 p.m. west of Alpine near Interstate 8.
The outage may have been caused by a traffic crash on Winter Gardens Boulevard and Wintercrest Drive in Lakeside, where a black SUV hit a transformer, a San Diego Sheriff's dispatcher told City News Service.
The crash was reported by the California Highway Patrol at 12:18 p.m., just before the power outage was reported.
The outage was due to a combination of factors with underground electrical equipment, officials said on the SDG&E website. Power was set to be restored at 5 p.m.
Approximately 368 customers were out of power in the Lakeview and Glenview areas as well. The cause of the outage was also a combination of factors and power should be returned to customers by 4 p.m.
In Imperial Beach, 594 customers were without power, and service there should be on again at around 3:07 p.m., officials said.
An apparently-unrelated power outage occurred in San Diego at 1:02 p.m. and affected 4,843 homes around the City Heights and Chollas Creek neighborhoods, according to the SDG&E website.
That outage was suspected to be caused by problems in the underground electrical system and was expected to be restored by 2:05 p.m., SDG&E said on its website.