A severe thunderstorm was raging over northwest Oklahoma on Thursday (April 24) evening, as flash flood warnings were issued across much of the region, according to the National Weather Service.

'Tornadic supercells' formed over some areas and up to 6 inches (15.24 cm) of rain had fallen in the state's northwestern region, the National Weather Service added.

It comes after at least two people, including a child, died in Oklahoma after their vehicle was stranded in flood waters, police said on Sunday (April 20), as severe weather and flooding hit parts of the U.S. South and Midwest during the Easter holiday weekend.

Earlier this month, a deadly spring storm spawned tornadoes and drenching thunderstorms in a swath of the U.S. stretching from Texas to Ohio, with over a dozen people killed in states of the U.S. South and Midwest.

(Production: Lion Schellerer)