Eurozone leaders have talked through the night for fourteen hours - and they haven't finished yet.

Greece is all but bankrupt and it's now been told it has to push legislation on a series of reforms through parliament in the next three days - before any talks on another financial bailout can begin.

But there's still no agreement on exactly what Greece has to do.

Eurozone finance ministers had presented an additional list of demands - some of which have been watered down, some of which are still unacceptable to the Greek government.

One sticking point is a privatisation programme designed to raise up to 50 billion euros in revenue - Greece, backed up by several countries, says it hasn't got anywhere near that amount of state assets to sell.

But beyond the details lies the big picture - the chairman of this summit Donald Tusk has described this as perhaps the most critical moment in the EU's history. It's not just about Greece, it's about the future direction of the single currency.