CUSTER | Authorities in southwestern South Dakota say five people managed to escape a house fire in Custer.

A release from the Pennington County Fire Service says the house is at 12253 Bavarian Hills Road. All five people were treated and released from a Custer hospital, according to the release.

The blaze broke out Saturday night. The fire caused extensive damage to the home, but firefighters were able to keep the fire from spreading to other structures.

Firefighters battled the blaze in temperatures as low as 13 degrees below zero.

No firefighters were hurt. The cause is under investigation.

In addition to the Custer Volunteer Fire Department, responding agencies included Pennington County 911, Hill City Volunteer Fire Department, Pennington County Fire Service, Custer County Sheriff’s Office, Custer County Ambulance Service, Custer County Emergency Management Agency, Black Hills Energy Argyle Volunteer Fire Department, Pringle Volunteer Fire Department, American Cross of Central and Western South Dakota, South Dakota Fire Marshal and City of Custer Public Works Department.