SIOUX FALLS, S.D. (AP) - Authorities continue to investigate a fire that killed three children in Sioux Falls a few days before Christmas, but extensive structural damage has prevented the investigators from entering the structure.

KELO-TV reports that officials from Sioux Falls Fire Rescue say the structure must be reinforced before investigators can work inside the house.

The fire on Saturday killed 16-year-old Michael Hensley, 12-year-old Savannah Coon and 6-year-old Alivia Coon. The parents, Rhiannon and David White, escaped by leaping to the ground from a second-floor window.

Funeral services for the three children will be held Monday.

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