BBC NEWS | Middle East | EU warns Iran 'time running out'
Some very decisive action from the European Union:
Mr Solana has had a number of meetings with Iran's top nuclear negotiator since Tehran refused a 31 August deadline from the UN to halt enrichment.
The US and key EU powers now say they will seek a fresh UN resolution imposing sanctions.
Mr Solana told parliament: "This dialogue I am maintaining cannot last forever.
"It is up to the Iranians now to decide whether this time has come to an end."