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More than 640 people are reported to have been killed in Turkey and northern Syria following a powerful earthquake which brought down residential buildings across a wide area.
The epicenter of the 7.8 magnitude quake was in the southern Turkish province of Gaziantep, but was felt hundreds of miles away.
Turkish government officials say a full emergency disaster response is underway.
In some areas, people have been digging through the rubble with their bare hands in their attempts to reach survivors.
Witnesses in rebel-held parts of northern Syria describe a disaster zone, many buildings have collapsed with emergency services saying they are overwhelmed in their rescue efforts.
Turkey has declared a state of emergency and the European Union, the United States and NATO have all offered help.
Syria's government is also coordinating an emergency response although it's not clear if that will include those in rebel-held areas.