At least 28 people are dead and tens of thousands without power after a storm system spawned a chain of tornadoes over three days across a large swath of the US, the Associated Press reported.
The storms flattened homes and businesses and forced frightened residents in more than half a dozen states to take cover.
More top news
Labour leadership candidate says Britain playing its role in the migrant crisis would help Cameron secure the promised reforms in Brussels.
Ten people have been taken to hospital and another two treated for injuries after a bus crashed into a tree in east London.
Cloudy skies for most as the Bank Holiday weekend begins - with brighter breaks through the south-east, the Midlands and East Anglia.