Germany's parliament has voted by a large majority in favour of supporting a more powerful fund to bail out troubled eurozone economies.
Markets have broken their three-day rally this morning, forced down by concerns some countries will be forced to take larger writedowns on Greek bonds.
Japan has said it will consider helping to save Greece as part of a wider bailout plan as it looks to avert a crisis in global growth.
European officials are working on a grand plan to save the eurozone involving a massive bank recapitalisation, giving the bail-out fund several trillion euros of firepower, and a possible Greek default.
The FTSE 100 sold off sharply in early trading alongside indices across Europe as fears over a break-up of the region swept across markets once again.
European leaders have assured Greece its future remains within the eurozone but warned it must implement the tough austerity measures set out as part of its rescue plan.
Architas senior fund manager Dawn Kendall examines the current financial situation in Greece and considers the possible impact for the wider European community.
EU leaders have agreed a further €109bn (£96bn) bailout for Greece, one-third of which will come from private sector bondholders.
Investment Week and our sister title InvestmentEurope provide ongoing updates of the latest industry thoughts around today's crisis talks on the future of the euro.
The threat of a stock market crash has risen to a "one in three" chance, the chief executive of the respected Centre for Economics and Business Research has warned.