Lake Vermillion, MN – A woman was found dead and a man was hospitalized with severe injuries after an explosion and fire Wednesday morning at a home near Lake Vermilion in northeastern Minnesota.

The explosion, which leveled the house, was reported around 9:36 a.m. in the 1700 block of Everett Bay Road, near Tower, St. Louis County Undersheriff Jason Lukovsky said.

The man was flown to St. Mary’s Medical Center in Duluth. The extent of his injuries was unknown Wednesday afternoon, the St. Louis County sheriff’s office said.

Remains found in the residence are believed to be from a woman who was inside at the time of the explosion.

Although the State Fire Marshal’s Office will investigate the cause of the explosion, Lukovsky said authorities believe it was possibly the result of a propane leak.

“We had numerous people call because they heard the blast,” he said.