Greek government coalition 'impossible'
The leader of a Greek centre-right party has said he cannot form a coalition government, just hours after he was given the mandate to do so by the president.
Antonis Samaras, whose New Democracy party is now the biggest in Greece - having gained just 19% of the vote - said a coalition was "impossible".
The Greek result, which saw support crumble for the mainstream conservative and socialist parties who supported the European bailout, has caused concern in the EU.
Matthew Price reports from Athens.