Update: Mtz/sdu/tusil Fire burns 550 acres in San Diego County

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Updated: 9:16 p.m. May 19

First discovered: 7 hours ago, 1:17 p.m. May 19

Initial location: San Diego County, Calif.

Fire type: Wildfire

Fire name: Mtz/sdu/tusil

Mtz/sdu/tusil Fire initially started today at 1:17 p.m. in in San Diego County, California.

After being active for seven hours, it has burned 550 acres of federal land managed by the Bureau of Indian Affairs. At this time, the containment status is unknown and the cause of the fire remains undetermined.

Source: National Interagency Fire Center

United Robots Sacramento

This story was originally published May 19, 2026 at 2:36 PM.