RAPID CITY, S.D. — Officials say the causes of two large grass fires over the weekend that sent smoke over Rapid City are under investigation.

Fire Lt. Jim Bussell says the fires are believed to have started by humans, but whether it was accidental or intentional remains under investigation.

Firefighters on Sunday evening responded to a fire in the same area of a wildfire Saturday night.

Bussell said Monday both fires burned about 3½ acres. He says firefighters responding to Sunday’s fire conducted a “burn out” in which additional brush was set on fire within the containment area to improve aesthetics, among other things.

____

This story corrects and clarifies that fire causes still under investigation.

Author photo
The AP is one of the largest and most trusted sources of independent newsgathering. AP is neither privately owned nor government-funded; instead, as a not-for-profit news cooperative owned by its American newspaper and broadcast members, it can maintain its single-minded focus on newsgathering and its commitment to the highest standards of objective, accurate journalism.