Army officials in Greece say they have orders to start scaling down their search for the wreckage of a Ukrainian passenger plane which came down on Wednesday as it approached the northern city of Salonika.
Freezing temperatures, dense fog and low clouds have hampered the search operation.The plane, which was on a flight from Kiev, was carrying about seventy people.
Officials say their main hope of finding the wreckage lies with a NATO search plane, which can detect metal on the ground.
From the newsroom of the BBC World Service