The blast was reported at 8:50 a.m. and heard as far away as Kingsford, roughly 10 miles to the west.

A man and woman in their 50s from the Milwaukee area were inside the home when the explosion happened, Marinette County Sheriff Jerry Sauve said in a news release. The man told emergency responders he was trying to light a propane furnace that had gone out.

Both were taken to Marshfield Medical Center-Dickinson in Iron Mountain and transferred to a hospital in Wisconsin. Their names and condition were not released.

The mobile home was a total loss and a garage and its contents severely damaged, Sauve said.

(Betsy Bloom/Daily News photo)

Debris was thrown across both Payette and Bombers roads.

A neighbor across Payette Road, Debbie Payette, said the blast blew out windows in her home and caused extensive structural damage to both the house and several outbuildings.

She came out after the explosion to see her neighbor walking around the debris-strewn property, telling her to call 911. His wife later emerged as well.

“By the grace of God they walked out of that place alive,” Payette said, though she could see both had substantial cuts and burns.

She said the couple had used the mobile home as a getaway for vacations and weekends.

Walking around her own property later in the day, Payette found the door knob to the destroyed mobile home in her backyard. Her garage had been knocked back, the door coming out of the damaged frame.

Payette said she suspects damage to the structure and foundation will make her house, which has been in the family since the 1930s, unlivable and perhaps unsalvageable.

The explosion remains under investigation but foul play is not suspected, Sauve said.

Assisting the sheriff’s office at the site were Niagara Fire Department, Niagara Rescue Squad, Integrity Care paramedics, Dickinson County Sheriff’s Office and We Energies.