Live updates: Texas, Arkansas, Oklahoma face tornadoes and severe weather risk

At least five people, including children, are dead after a possible tornado struck Texas overnight, as severe storms caused power outages and forced residents to shelter in place across the central United States on Memorial Day weekend.

The five fatalities were reported in Cooke County, Texas, and three occurred in one household, Cooke County Sheriff Ray Sappington told CNN on Sunday morning. Two children in the area were reported missing and are still unaccounted for as of Sunday morning.

More than 110 million people across broad swaths of the US are under threat of large hail, damaging winds and fierce twisters Sunday, mainly throughout the mid-Mississippi, Ohio and Tennessee River valleys.

Inside a Shell gas station, 60 to 80 people were trapped until the storm blew over, Sappington said. Multiple injuries were reported at the station, but none were life-threatening, he added.

Many vehicles were damaged and destroyed, leaving about 40 people stranded. They were transported by bus to another gas station in Gainesville, where they were picked up by family members.

Damage elsewhere: In north Denton County, Texas, a possible tornado injured an unknown number of people, damaged several homes, overturned 18-wheelers, downed trees and knocked out power lines on Saturday night, authorities said early Sunday.

Damage to several homes was also reported in the neighboring city of Celina.

Across state lines, officials said a possible tornado swept through Rogers County, Oklahoma, downing power lines and trees and damaging homes. In the city of Claremore, officials said there was “a lot of damage” and electricity will be out for much of the city “for an extended period of time.”