CHEYENNE, Wyo. (AP) — Two Wyoming Air National Guard transport planes have returned to fighting wildfires this week.

The increased fire activity in the West prompted the U.S. Forest Service to call for the C-130s, which are specially outfitted to drop up to 3,000 gallons of fire retardant slurry or water.

The aircraft belonging to the Wyoming Air National Guard's 153rd Airlift Wing in Cheyenne are now operating out of the Boise Air Terminal in Idaho.