(Jamestown, ND) — One person is seriously injured after a house fire in Jamestown that may have been triggered by an explosion. Police say they received calls about 1:35 Thursday morning from people saying they heard a possible house explosion on 1st Street West. Authorities say a fire started in a detached garage and spread to the next-door neighbor’s house and garage. A 55-year-old victim suffered severe burns and was air-lifted to a hospital in Minneapolis with life-threatening injuries.