According to officials and agencies, a magnitude 7.8 earthquake that slammed Turkey and Syria early on Monday left more than 4,300 people dead and thousands injured.
Aid organizations are especially concerned about northwest Syria, where more than 4 million people were already reliant on humanitarian assistance and thousands of buildings collapsed in both nations.
According to the US Geological Survey, the earthquake, one of the greatest to impact the area in more than 100 years, occurred 24.1 kilometers (14.9 miles) beneath the surface in Turkey's Gaziantep province, 23 kilometers (14.2 miles) east of Nurdagi.
Following terrible earthquakes that claimed more than 5,000 lives and toppled structures across southeast Turkey and northern Syria, President Recep Tayyip Erdogan of Turkey has announced seven days of national mourning, and Syria has asked the UN for assistance.