The UN's cultural body has warned international art dealers and museums to look out for artefacts that may have been looted from Libya during fighting.
Unesco director-general Irina Bokova said in a statement that dealers should be "particularly wary of objects from Libya in the present circumstances".
And she called on Libyans to protect their "invaluable cultural heritage".
Libya has five World Heritage sites including Cyrene - one of the principal cities in the Hellenic world.
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