SIOUX FALLS, S.D. (AP) - Fire officials are preparing to go inside a burned-out home in Sioux Falls where three children died to try to figure out the cause of the blaze.

The fire early on Dec. 22 killed 16-year-old Michael Hensley, 12-year-old Savannah Coon and 6-year-old Alivia Coon. The children's mother and her husband escaped the flames through a second-floor window.

The house had been too badly damaged for fire investigators to safely enter, but it has now been reinforced. Fire department, police department and private investigators plan to start digging through the rubble beginning Tuesday.

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