Authorities investigating Blue Earth camper fire FILE — Authorities in Blue Earth are investigating the cause of a fire that caused one person to be airlifted to be treated for injuries. (Source: HNN) By KEYC Staff | May 7, 2021 at 4:35 PM CDT - Updated May 7 at 4:35 PM BLUE EARTH, Minn. (KEYC) — Authorities in Blue Earth are investigating the cause of a fire that caused one person to be airlifted to be treated for injuries. The Blue Earth County Sheriff’s Office says it responded to a call of a camper fire Friday morning at 701 West 1st Street in Blue Earth. Authorities arrived on-scene to find 31-year-old Daniel Johnson lying in the grass across the street from where the fire had occurred.