Large planes have dumped fire retardant on a massive wildfire in Montana this week, in a bid to get the blaze under control.

The footage filmed on September 6 shows a plane flying over forested mountains, releasing a huge dump of what looks like red powder onto the trees.

The Arrastra fire started on the west end of the Lincoln Ranger District in the Helena-Lewis and Clark National Forest.

The fire was first reported on Tuesday, September 6 and a Red flag warning was issued as of Wednesday, September 7, due to the current hot, dry, and dangerous conditions.

This video shows the moment a large plane flies over a massive wildfire in Montana and dumps fire retardant on it in a bid to get the blaze under control.

The Arrastra fire started on the west end of the Lincoln Ranger District in the Helena-Lewis and Clark National Forest, near Helmville, Montana, in the United States.

Helena-Lewis and Clark National Forest Service thanked the Montana Department of Natural Resources and Conservation, Lolo National Forest, Helmville Volunteer Fire Department, Ovando Volunteer Fire Department, Lincoln Volunteer Fire Department and Lincoln Ranger District for providing a strong response to the fire via ground and aerial resources.

The Arrastra Fire was first reported on Tuesday, September 6, at 2:55 pm. A red flag warning was issued as of Wednesday, September 7, due to the current hot, dry, and dangerous conditions.

Its cause has yet to be determined.