Details Released On 4 Killed In Rapid City Fire

A preliminary autopsy report says a grandmother and three grandchildren killed in a house fire in Rapid City died from smoke inhalation.

The Pennington County Coroner's Office released the details on preliminary autopsy reports for 51-year-old Marcia Rock, 9-year-old Thomas Rosado, 5-year-old Dustin Rosado and 3-year-old Marquez Hawk Wing on Thursday. All four were killed after a late-night fire broke out Tuesday at their home.

Rock was pronounced dead at the scene, and the three children were pronounced dead at a local hospital.

Authorities say early indications indicate human actions may have contributed to the cause of the fire.

The American Red Cross helped 17 displaced people find a place to stay for the night. As many as 21 people may have been living in the home.