VIDEO: Two people were seriously injured in a large explosion at their mobile home in northern Marinette County Sunday morning. According to Marinette County Sheriff Jerry Sauve, the explosion was reported at 8:50 a.m. Sunday at a home on Payette Rd. at Bomber Rd. in the Town of Niagara. It was heard by many people several miles away. A man and a woman in their 50s from Milwaukee were inside their seasonal residence at the time. The couple’s names have not been released. They are hospitalized in a Wisconsin hospital with serious injuries including severe burns, Sauve says. Sauve says the man told responders that he was trying to light the propane furnace which had gone out. The mobile home was destroyed in the explosion, and a garage and its contents were severely damaged.