A 12-acre fire burning mostly mulch that ignited Wednesday in a palm grove in Thermal is expected to affect air quality in the Coachella Valley through Thursday.
There was no immediate word on what sparked the non-injury blaze, which was reported about 10:30 a.m. near where Van Buren Street and Avenue 58 intersect, according to the Riverside County Fire Department.
Nearly five dozen firefighters from multiple agencies were battling the blaze.
About 20 Imperial Irrigation District electrical customers lost power due to a purposeful shut off by the agency in response to the blaze.
The intersection of Van Buren Street and Avenue 58 was closed, but no evacuations were ordered.