Rosa Fire initially started 12:27 p.m. Aug. 4 in Riverside County, California. Since its discovery 31 hours ago, it has burned 1,658 acres. A fire crew of 775 effectively contained 15% of the fire as of Tuesday evening. However, the cause is still under investigation.

A vegetation fire ignited in the Santa Rosa Mountains in Riverside County on Monday afternoon, burning 1,200 acres by nightfall and prompting evacuation orders in nearby rural communities.

Evacuation orders have been issued as a large brush fire burns east of Anza in the Ribbonwood area of Riverside County. As of 11 a.m. on Tuesday, crews said the fire was still 5% contained after firefighters on the ground and in night-flying helicopters battled the blaze overnight,