Trump says unless North Korea summit 'fruitful' he will pull out

President Donald Trump has said that although he is looking ahead optimistically to a historic summit meeting with North Korean leader Kim Jong Un he could still pull out if he feels it is "not going to be fruitful".

Mr Trump said that CIA director Mike Pompeo and Mr Kim "got along really well" in their recent secret meeting, and he declared, "We've never been in a position like this" to address worldwide concerns over North Korea's nuclear weapons.