The Washington County Sheriff's Office is investigating an explosion and house fire that happened in Barton near West Bend on Friday, July 23. Officials were notified of the incident at a single family residence near Norman and Jeanellen around 8:18 p.m. Friday night. "At approximately 8:21 p.m. last night we got dispatched for the report of an explosion. Flames were visible and injuries. First unit was on scene within five minutes and came to a fully involved house," said Batallion Chief Jeff Gustafson from the West Bend Fire Department. Officials say there were two occupants at the home during the explosion. Both received severe burns. They were taken by ambulance to a local hospital and then med flighted to a regional burn unit. A family member on scene told CBS 58 that the victims remain in critical condition.