Britons stranded by flight restrictions as a result of the volcanic ash cloud from Iceland could be returned to the UK through a "Spanish hub".
Ministers met to discuss plans before UK flight restrictions were extended until at least 1900 BST on Monday.
Ideas included flying those outside the no-fly zone to Spain and then using the Royal Navy and requisitioning merchant ships to help return them to the UK.
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Travel agents' association Abta said its "rough estimate" was that 150,000 Britons had been unable to return to the UK because of flight restrictions.
http://news.bbc.co.uk/1/hi/uk/8628605.stm