At least eight dead as parts of the US are hit by severe weather

A kayaker navigates floodwaters in rural Knox County, Kentucky. (Donnie Smith via AP)

Much of the US faced another round of biting winter weather on Sunday with torrential rains causing intense flooding in Kentucky and resulting in at least four deaths in the south-east of the country.

The Northern Plains faced life-threatening cold, and tornado watches were issued for parts of Georgia and Florida.