Authorities announced that the fire was 5% contained around 2 p.m., later increasing containment to 25% by 6:19 p.m.
Firefighters battled a rapidly spreading brush fire east of Moreno Valley that broke out shortly after noon on Saturday in hilly, tough-to-access terrain known as the Badlands.
The so-called Round fire, which began near the intersection of Gilman Springs Road and Alessandro Boulevard, was burning in light, flashy fuels in an area with limited access, the Cal Fire/Riverside County Fire Department reported on X, and additional engines were being requested.
There were no evacuation warnings in place, according to Cal Fire, and no homes threatened. No injuries related to the fire have been reported.
