Tornado: Obama announces Missouri visit

US President Barack Obama says he will visit the tornado-hit state of Missouri on Sunday, straight after returning from a six-day tour of Europe.

Sunday's huge tornado cut a path some six miles (10km) long and at least half a mile wide through the city of Joplin, killing at least 116 people.

Speaking in London before meeting Queen Elizabeth II at the beginning of his stay in the UK, Mr Obama vowed the US government would "do absolutely everything we can" to help victims recover and rebuild.