Two volunteer firefighters died and one was injured after an explosion Thursday morning northwest of Britton.
Marshall County Sheriff Dale Elsen says a 20-year-old man and a 22-year-old man had been on top of a structure putting out a fire when an explosion blew off the top and south wall of the building, killing the men.
Elsen said the man injured was the father of one of the men who died. The man was taken to Marshall County Health Care Center.
Elsen said several volunteer firefighters had fought the blaze and thought it was extinguished when the explosion occurred.
The 911 call came in at 9:51 a.m.