HOT SPRINGS, S.D. - UPDATE: 5:38 a.m.
In a Facebook post early Wednesday morning, the Fall River Sheriff's Office says the Wall Canyon Fire is now 75 percent contained.
Crews expect to get it completely under control by this evening. Crews say the recent rain helped their fire fighting efforts.
Officials believe the fire started due to lightning.
An update by Great Plains Fire Information says the fire has grown to 43 acres, but the fire is 50 percent contained. The update said weather is helping as there is rainfall in the area.
Crews are fighting a fire south of Hot Springs.
According to the Fall River Country Sheriff's office, they received a call about the fire Monday afternoon near Wall Canyon, which is 5 miles south of Hot Springs.
By Tuesday morning, the fire was estimated to be 30 to 35 acres.
Local, state and federal crews are working to contain the fire.
Officials don't know what started the fire yet.