More than 5,000 people have been killed and tens of thousands injured after a magnitude 7.8 earthquake struck Turkey and Syria on Monday, according to officials.
Thousands of buildings collapsed in both countries and aid agencies are particularly worried about northwestern Syria, where more than 4 million people were already relying on humanitarian assistance.
The quake, one of the strongest to hit the region in more than 100 years, struck 23 kilometers (14.2 miles) east of Nurdagi, in Turkey's Gaziantep province, at a depth of 24.1 kilometers (14.9 miles), the US Geological Survey said.