EU exit would leave Britain with zero influence, says Barroso

"Britain is stronger in the European Union," Mr Barroso said, pointing to the Ebola crisis as an area where Britain would not have the same level of influence if it was outside the EU.

"David Cameron wrote to all of us about Ebola... What would be the influence of a prime minister of Britain if it was not part of the European Union?

"His influence would be zero."