Two are dead after a house "exploded" in Rapatee on Sunday. Knox County Sheriff Dave Clague said a house in the southern part of Knox County, about a mile from the Knox-Fulton county line, was "leveled" after an explosion there at about 11:30 a.m. Sunday. The names of the two people who died Sunday were being withheld pending family notification as of about 2 p.m. Sunday. There was also "severe damage to the house immediately to the south" and blew out windows of other nearby houses, Clague said. The explosion was "heard as far away as Fairview and Maquon," Clague said. Rapatee is along Illinois Route 97, south of Maquon, and north of the intersection of Illinois Routes 97 and 116, between London Mills and Fairview. Illinois Route 97 is expected to be closed for travel until at least Monday morning as investigators determine what led to the home explosion. Clague said the personnel from the state fire marshal and Illinois State Police crime scene tech were headed to the house early Sunday afternoon to investigate. He also said Knox County and Fulton County sheriff department personnel responded to the area as well as several volunteer fire agencies.