Three major wildfires raging out of control in the same Minnesota county have burned more than 20,000 acres combined, destroying dozens of structures, triggering evacuations and prompting the governor to call in the state National Guard to help battle the flames.

The home's gas line had been tampered with, authorities said. A woman was shot in the head and a man died in the fire.

Amtrak service in and out of Baltimore has been restored on one track as firefighters continue to fight a fire at a nearby vacant mattress warehouse, authorities said.