Italians are voting today in a referendum which could have a big impact on the future of the Euro.

The vote, called by Prime Minister Matteo Renzi, is on constitutional reforms giving greater powers to central government.

Mr Renzi says he will resign if he loses.

That could hand power to the opposition Five Star Movement who want to leave the Euro zone, and return to the Lira currency.

Italian journalist Cristina Marconi says the No vote is ahead in the polls, but that may be misleading: