Emmanuel Macron, Boris Johnson and Justin Trudeau have scrambled to wriggle out of their embarrassing diplomatic blunder where they mocked Donald Trump behind his back and caused the humiliated President to quit the Nato summit early.

The three leaders each moved to defuse the friction with their famously thin-skinned US counterpart, who scrapped a scheduled press conference and jetted out of London tonight.

Macron raged that the video - said to be captured by freelance cameraman Andy Laurence and handed to broadcasters by Nato - had surfaced at all and refused to be pressed on the gossip which was caught on hot-mic.

The French premier said: 'I am not going to comment on stolen videos. That video wasn't supposed to be filmed in that room.'