MO – KSDK – Investigators think a gas leak may have caused an explosion that leveled a Franklin County home. The blast happened Saturday around 2:00pm between St. Clair and Pacific just off Highway HH.

No one was home when the explosion happened. The homeowner is vacationing out of state. The debris damaged the house next door where her grandparents, Eleanor and John Stiern live. The two homes were connected by a breezeway of ten to fifteen feet.

The Stierns were taken to the hospital with cuts and bruises, and were expected to be released Saturday night.