RAPID CITY, S.D. – Dozens of fire units responded Sunday night to a mobile home fire just north of Interstate 90 at the Whispering Willows Mobile Home Park on West Gate Road.

The Pennington County Sheriff’s Office says upon arrival, an active fire was observed at lot 109 with heavy fire and smoke conditions.

Following containment efforts by Firefighters, a deceased male was discovered inside the residence along with a deceased dog.

Positive identification through fingerprints have been made and next of kin notifications completed. The deceased male was 68-year-old Darwin Toof of Box Elder.

The cause of the fire remains under investigation by the South Dakota Fire Marshall and Pennington County Sheriff’s Office.

Agencies that responded to this incident include the Pennington County Sheriff’s Office, South Dakota Fire Marshall, Box Elder Police Department, Rapid City Police Department, Box Elder Volunteer Fire Department, South Dakota Highway Patrol, New Underwood Volunteer Fire Department, Rapid Valley Volunteer Fire Department, Rapid City Fire Department, Black Hawk Volunteer Fire Department, North Haines Volunteer Fire Department and Ellsworth Air Force Base Fire Department.