At least three people were killed in North Dakota after severe weather swept across the region overnight, authorities said.The Cass County Sheriff's Office said it was dispatched to rural Enderlin, North Dakota,

The deaths came after a series of large and long-lasting storms moved through North Dakota and Minnesota Friday night.

Three people are dead and a regional airport was heavily damaged after powerful winds, including a tornado, swept across the upper Midwest, while nearly 150 million Americans were under a heat advisory or warning.