APPLE VALLEY ( — Firefighters Wednesday continued to battle a large vegetation fire that erupted during a controlled burn in Apple Valley.

Shortly before 8:30 a.m., the San Bernardino County Fire Department reported the fire expanded to 185 acres.

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Firefighters warned that heavy burning is expected to continue in the riverbed throughout the day.

The blaze was reported at 11:50 a.m. Tuesday, at Mojave Narrows Regional Park.

Authorities initially reported the fire sparked when winds shifted during a controlled burn that was being conducted by San Bernardino County Regional Parks officials.

However, the San Bernardino County Fire Department clarified on twitter that park staff used a burn permit in the area.

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Over 200 personnel, including several strike teams, hand crews, water tenders, helicopters and dozers assisted in the effort to contain the fire.

According to fire officials, the flames destroyed a 30 year old military Humvee, three sheds and a chicken coup in addition to threatening at least 100 structures in the area.

Mandatory evacuations were lifted around 7 p.m. for residents that live along Riverside Drive between Riverside Way and Nokomis in Apple Valley.

No injuries were reported.

At this time, 30 percent of the blaze has been contained.

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Full containment is expected by this evening.