Thousands of customers are without power Saturday night across Southern California, according to utility officials.
Electricity was out for 3,337 Southern California Edison customers as of 9:30 p.m., utility spokeswoman Mashi Nyssen said.
The areas affected most include Montebello, Covina, Ontario, Chino, Corona and La Puente, Nyssen said.
The outages come amid a dangerous heat wave, leaving affected customers without a way to cool down at home. Temperatures in those areas ranged from 76 to 86 degrees Saturday night, according to the National Weather Service.
Local news from across Southern California
It’s not clear what caused the outages, though Nyssen said some may be related to the record-breaking temperatures that hit the region Saturday.
Sunday is expected to be the hottest day of the heat wave.
Residents are encouraged to be conscious of their power use during the sweltering stretch. Utility officials ask customers use their dishwashers, clothes washers and driers, and stoves after 6 p.m.
Going to public areas that are air conditioned will also help conserve electricity. If residents have to use their air conditioners at home, they’re asked to keep the temperature at 78 degrees.