Tony Blair: Pro-EU groups need 'passion and vigour'

Former prime minister Tony Blair has expressed his concern at the "fervour" of anti-EU campaigners and called for those supporting the EU to make their case with "passion, vigour and determination".

"You can't have a referendum like this, especially with the fervour on the anti side, and not be concerned. So I am concerned, but I believe in the end we will vote to stay," the Labour politician told the Radio 4's Today programme.