Brexit 'a failure and a tragedy' says top European Commission boss Jean-Claude Juncker

He confirmed that the UK will be presented with a bill for leaving.

Brexit is "a failure and a tragedy", European Commission president Jean-Claude Juncker has said.

The EU's most senior civil servant promised that Brussels will approach the negotiation of Britain's withdrawal in a "friendly" and "fair" way, but warned that European institutions were not "naive" about the process.