French Government Minister Criticises Boris Johnson, the new Foreign Secretary

Boris Johnson, the new Foreign Secretary, has been fiercely criticised by Jean-Marc Ayrault, the French Foreign Minister and former Prime Minister.
Reuters quote the French Minister as saying:
“I am not at all worried about Boris Johnson, but… during the campaign he lied a lot to the British people and now it is he who has his back against the wall”.
Boris Johnson is yet to respond to the criticism.