More than 1,000 customers are without power after a combination of factors caused a problem in the electric system, according to San Diego Gas and Electric (SDG&E).
The outage happened at 8:26 a.m. and power is estimated to be restored at 12:30 p.m., according to SDG&E.
Customers affected are in the West San Marcos, Twin Oaks, Lawrence Welk, Hidden Meadows and Buena communities.
Sheriff's officials say several traffic light signals are out, including along Twin Oaks Valley Road. Sheriff's deputies said there is a widespread power outage north of State Route 78.
No other information was immediately available.
Check back for updates on this breaking news story.