NORTH Korea is threatening all out war with the US after a top US senator dubbed their leader Kim Jong-un a “crazy fat kid”.

Senator John McCain made the inflammatory remarks while discussing the tyrant’s recent ballistic missile tests and his repeated threats to destroy the US.

In an interview on MSNBC, McCain called for action against cheese and wine-loving Kim before it is too late.

He said: “China is the only one that can control Kim Jong-un, this crazy fat kid that’s running North Korea. They could stop North Korea’s economy in a week.

“They haven’t, because the Chinese have to understand there’s a penalty… imposed by us if they don’t reign in an individual that can literally start a world war, and more importantly, perhaps in the short term, strike the United States of America.”

McCain has been outspoken about dealing with North Korea in the past but the regime thinks he has gone too far this time