More than 50m Americans under severe storm threat after at least five people die in Southern states – latest updates

Extreme weather warnings issued across the US as more storms are expected; millions also warned of heatwave

At least five people were killed after severe storms and tornadoes ripped across a swath of US southern states, leaving hundreds of thousands without power and causing widespread damage.

Three people were killed after a devastating tornado tore through the north Texas town of Perryton on Thursday evening, injuring dozens others and causing widespread damage.