Firefighters Clear Brush Near Bighorn Fire in Arizona

Firefighters cleared trees, bushes and grass near Tucson, Arizona, on Wednesday, June 10, as they aimed to contain the Bighorn Fire, which was burning in the upper portions of the Pima Canyon.

At the same time, helicopters were used to drop water on the flames, the Tucson Fire Department said.

According to authorities, the fire had burned 3,277 acres by Wednesday evening, and was only 10 percent contained.

The fire department said the brush clearing was part of a strategy of “progressive fire prevention.” Credit: Tucson Fire Department via Storyful