Syria crisis: Concern at warning refugees may soar
10 March 2013 Last updated at 14:30 GMT
The number of refugees from Syria may double or even triple this year if the conflict does not end, the UN's refugee chief has said.
Speaking in Turkey, Antonio Guterres warned of the "risk of an explosion" across the Middle East if the crisis continued much longer.
The BBC's James Reynolds said the warning would be a worry for neighbouring countries who are already dealing with a large number of displaced Syrians.