The Latest on wildfires burning in the Western United States (all times local):

12:45 p.m.

Utah authorities are investigating whether a brush fire that destroyed at least 10 mobile homes was intentionally set.

The 30-acre fire in the northern Utah city of Tooele ripped through a trailer park overnight after high winds pushed it out of a field and into a neighborhood.

Tooele fire and police officials said Wednesday that the blaze appeared suspicious and investigators were trying to determine if it was arson.

The fire has been contained but has displaced several dozen people. Eight other homes and a handful of cars were damaged.

Three firefighters and one resident were treated for smoke inhalation, but no other injuries were reported.

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11 a.m.

New wildfires have broken out in national forests in western Wyoming as crews battle a blaze blocking a route to Yellowstone National Park during peak tourist season.

The new fires were discovered Tuesday in remote areas of the Bighorn and Shoshone national forests.

A larger blaze has burned about 12 square miles in the Bridger-Teton National Forest and closed U.S. 191/189, a highway heavily used by travelers heading across Interstate 80 to visit Jackson Hole and Yellowstone.

There are alternate routes available to travelers heading to northwest Wyoming, including I-25 through Casper. The fire is burning about 5 miles north of the community of Bondurant.