WAHPETON, N.D. (Valley News Live) Update:
The Richland County Sheriff's Office confirms that Tuesday night's victim, Michael Friederichs, has died.
A man is critically injured after a camper explosion in the southern valley.
The Richland County Sheriff's Office says it happened around 6:30 Tuesday night in rural Wahpeton. The victim was inside the camper when it exploded and caught fire north of town. He was life-flighted to a Fargo hospital with what's described as serious injuries.
The North Dakota fire marshal's office is looking for the cause of the blast.