LYON COUNTY, IA (KELO.com) -- A helicopter crashed Monday afternoon in Lyon County, Iowa, sending the two people aboard to Sioux Falls hospitals with serious injuries.
Lyon County Sheriff Stewart VanderStoep says the privately owned chopper was helping in a search for stray cattle.
"They apparently called in a helicopter to help search for some of these missing 300 head of cattle and...the helicopter hit a power line and went down and crashed."
Sheriff VanderStoep says the crash caused temporary power outages, including the entire city of Rock Rapids. He says the helicopter came down in farmland between West Lyon High School and Lake Pahoja.
The Federal Aviation Administration will help in the investigation.
The hundreds of cattle had gotten loose much earlier in the day.