Federal investigators are expected to arrive at the South Dakota site where nine members of an extended Idaho family were killed in a plane crash.
Authorities say the single-engine plane went down Saturday afternoon, shortly after taking off from Chamberlain, about 140 miles (225.3 kilometers) west of Sioux Falls. Three others on board the plane were injured.
Travis Garza with the health and wellness company Kyani said Sunday that among those killed were brothers and company founders Jim and Kirk Hansen.
National Transportation Safety Board spokesman Peter Knudson says the plane was bound for Idaho Falls. Knudson says federal investigators would likely reach the crash site on Monday.
Officials say Chamberlain was under a winter storm warning at the time of the crash.