Difficult conditions and freezing temperatures hampered rescue efforts overnight in Turkey and Syria, one day after a powerful earthquake struck the region, killing at least 4,300 people.
As the scale of the devastation from the 7.8 magnitude tremor continued to unfold, the World Health Organisation warned the number of casualties could exceed 20,000.
International rescue missions rushed to both countries and worked through the night to find survivors on Tuesday.
The early-morning quake and aftershocks, including a 7.5 magnitude tremor, wiped out entire apartment blocks in Turkey and heaped more destruction on Syrian communities already devastated by over a decade of war.
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