Jean-Claude Juncker delivered a vicious parting shot at Boris Johnson today, accusing him of 'lies' during the Brexit referendum battle.

The EU commission president made the bitter claim as he prepares to stand down after his five-year term.

He also took a potshot at Tony Blair for failing to push the UK into signing up to a federal European system, saying that had paved the way for the Brexit vote.

The jibe, in an interview with Der Spiegel, came despite Mr Johnson and Mr Juncker managing to put together a new deal in just a few months after he became PM.

Mr Johnson has repeatedly dismissed claims that he misled voters as the face of the Vote Leave campaign.

EU commission president Jean-Claude Juncker (pictured in Brussels last week) made the bitter claim about Boris Johnson as he prepares to stand down after his five-year term

Remainers were furious at the Brexit bus emblazoned with the claim that departing from the EU could free up £350million a week for the NHS.

In his latest interview, Mr Juncker singled out Mr Johnson for condemnation.

'So many lies were told, including by current prime minister, Boris Johnson, that there needed to be a voice to counter them,' he said.

Mr Juncker also pointed the finger of blame for the referendum result at Europhile politicians, such as 'my friend' Mr Blair.

The chief Eurocrat said the British had always seen the EU as an economic project rather than a political union.

'If you stick to that narrative for over 40 years, it should not come as a surprise when people remember it during the referendum,' Mr Juncker said.