He called for all borders across Europe to be opened, despite the chaos caused over the last year from the flood in refugees fleeing Syria and the wave of terror attacks hitting various continent's cities.

The remarkable comments will further undermine Mr Juncker's precarious position as European Commission President. 

He has faced repeated calls to quit after his failure to keep Britain in the EU and the refugee and Greek debt crises. 

Today he accepted the Commission 'deserves criticism' but insisted national government's 'have to share the blame'. 

Speaking at the Alpbach Media Academy this morning, Mr Juncker said: 'Borders are the worst invention ever made by politicians.'

The contentious remarks from the Brussels chief are the polar opposite of moves by elected leaders of EU member states who have tighten their borders over recent months after more than a million entered the bloc from Syria in less than a year.