The World Health Organization (WHO) has warned that the number of victims in the earthquake disaster that struck southern Turkey may rise to eight times.
The death toll in Turkey alone has exceeded 2,920 so far, as the number of dead and injured has increased dramatically since the first earthquake occurred on Monday morning, local time.
The number of earthquake victims in Syria has risen to more than 1,450.
Twelve hours after the first quake, another tremor struck north of the city of Gaziantep, with almost the same intensity, and close to the epicentre of the first quake.
Rescue crews are still racing against time to find survivors under the rubble.
The US Geological Survey said that the first quake had a magnitude of 7.8 on the Richter scale, struck at 4:17 am local time, and was concentrated at a depth of 17.9 kilometres from the Earth's surface.
Experts say that the first quake was one of the most severe earthquakes ever recorded in Turkey, and lasted about two minutes.