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While rescuers are fighting for the lives of those buried on the ground, the extent of the catastrophe can at least be guessed at from the air.
Drone footage shows the destruction in Kahramanmaraş.
The city is at the epicenter of one of the earthquakes that shook parts of Turkey and Syria on Monday morning.
The area affected is almost the size of Germany.
Thousands of buildings collapsed.
The aerial photos also show that there is little to counteract the masses of rubble with excavators and bare hands.
In the west of the city: The state disaster control agency has set up emergency accommodation in the football stadium.
Thousands of people are homeless and dependent on help in temperatures around freezing.
Tents have also been set up in other affected cities – wherever there is space.
In some places, the victims of the earthquake are buried in mass graves.
In the Syrian city of Djinderes, graves are dug while people pray over the bodies that are laid out.
At least 3,200 deaths had recently been reported from Syria, and more than 14,000 from Turkey.
Immediately after the severe tremors, a major fire broke out at the port of the southern Turkish city of Iskenderun.
Apparently, containers had fallen over and caught fire, but the exact cause is still unclear.
The fire has now been extinguished.
The earthquakes also destroyed large parts of the infrastructure.
This makes relief operations and rescue work more difficult.
Rescue workers are struggling to reach some of the hardest-hit areas in Syria from Turkey.
Many roads are impassable, like this highway between Turkey's Hatay and Syria's Aleppo.
In some areas people have neither fuel nor electricity.
With the help of few machines and the light of campfires, rescuers search for survivors in the village of Bisnia.
According to the government, more than 100,000 helpers are deployed in Turkey, many of them with search dogs.
The rescue workers are fighting against time.
With every hour that has passed since the quake, the chances of finding survivors under the rubble are decreasing.
Drones and satellites are also of great importance for rescue operations.
They provide data, map and photograph the disaster areas.
This allows dangers to be assessed and rescue operations to be better planned.