No fewer than 24,000 people are now known to have died in the disaster, including 20,665 in Turkey and 3,553 in Syria, according to figures from the AFP news agency.
Millions are thought to be homeless in the region and rescuers are increasingly focusing on those requiring food and shelter.
The UN’s humanitarian chief said only two aid convoys had reached rebel-held areas in Syria, and he called for an immediate ceasefire to allow help to reach everyone.
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