The nearly 13,000-acre wildfire burning in eastern Utah crossed the Colorado border Monday night, joining four other fires already burning on the western slope, fire officials said.

The Deer Creek Fire, which started in eastern Utah and has already destroyed several structures, has crossed the state line into Colorado, state fire officials said.

A fire in eastern Utah has grown rapidly to over 10,000 acres and is 0% contained, as of Monday. The Deer Creek Fire has already claimed five buildings in the area. More than 300 firefighters, 10 fire engines,