A small brush fire in Jurupa Valley Monday afternoon prompted evacuation orders around the Santa Ana River bottom, officials said.
The Lake Fire erupted shortly after 11 a.m. in the Santa Ana River bottom near Lakeview Avenue and Pedley Road, according to Cal Fire Riverside.
As of 5:30 p.m., the blaze had scorched 200 acres and was 0% contained.
Moderate to heavy brush is burning in the area.
An evacuation order is in place for residents south of Limonite Avenue to the river bottom, east of Downey Street and west of Van Buren Boulevard. The same area was under a mandatory evacuation order that was lifted around 2:15 p.m., but put in place again about 4:10 p.m.
About a half hour later, officials issued additional evacuation orders for Riverside residents east of Van Buren Boulevard, north of Jurupa Avenue and west of Fremont Street and Industrial Avenue.
An evacuation center is open at Patriot High School, located at 4355 Camino Real in Jurupa Valley.
Crews are combating the flames from the ground and in the air.
The Murrieta and Corona fire departments were also assisting in the firefight.
Check back for updates on this developing story.