A series of tornadoes swept across eastern Colorado, causing several minor injuries and damaging buildings, NBC News reported.
Four structures suffered "significant" damage and five people suffered "minor injuries" after half-mile-wide twister touched down at the north edge of the city of Wray in Yuma County Saturday, about 100 miles east of Denver, according to the sheriff's Office.
Elsewhere in the state, a "multi-vortex tornado" was reported over Interstate 76 near the town of Wiggins. At least a dozen trailers were overturned, NBC affiliate KUSA reported.
More than a million people in Kansas and Oklahoma faced the threat of severe storms, which were expected to deliver large hail and possible tornadoes in the late afternoon, according to the National Weather Service.