Tornadoes rampaging through Oklahoma have dumped heavy rains, stranding motorists in flood water and deluging homes across Oklahoma City and the surrounding areas.
The US National Weather Service later lifted a tornado warning for the region, but said flash floods remain a clear threat.
Do not think the flash flooding is over. The storms are building back to the south now. Additional rainfall still expected for metro. #okwx
Power utilities Oklahoma Gas and Electric and Ameren said 171,000 customers were without power in Oklahoma, Missouri and Illinois, which had been under a tornado warning on Thursday.
More top news
A city in China has opened a dedicated 'mobile phone lane' to help texting pedestrians safely navigate their way around.
Rio Ferdinand has hit out at former England team-mate John Terry, labelling the Chelsea skipper as 'the biggest idiot'
A mother and son who are voting for opposing teams in Thursday's referendum explain the divide the debate has created in their home.