More than 2,300 people have been confirmed dead after a 7.8 magnitude earthquake struck Turkey and Syria, before a second tremor hit 12 hours later.
Rescue workers joined residents in trying to find survivors in the rubble of destroyed buildings in cities either side of the two countries’ border.
The scramble to save anybody buried in rubble and get help to the wounded came as a second earthquake hit, measuring 7.5.
Turkey’s president Recep Erdogan says 912 people have been killed in Turkey, and 5,383 are injured, but he could not predict how much more the death toll will rise. He described it as the worst disaster in the country for almost 100 years.
“Tonight at 04:17, we were shaken by the biggest disaster since the 1939 Erzincan earthquake that we underwent in the last century,” he said.
In Syria, the death toll in government-held areas has climbed to over 430 people, the health ministry has confirmed.
The earthquake was so powerful it was felt as far away as Cairo. It was centred north of Gaziantep, a Turkish city about 60 miles away from Syria.
Reports of the desperate search for survivors – which has gotten under way amid six aftershocks- say Turkish survivors were seen shouting to people inside a partly-toppled building that was leaning precariously in one city.
Turkey’s vice president Fuat Oktay said at least 1,700 are confirmed to have been destroyed.
One of the aftershocks registered at 6.7.
National leaders vowed to help Turkey recover as they described their shock at the devastation, with Ankara opening up an air corridor to the devastated region.
The UK has announced it is sending 76 search and rescue specialists, four search dogs and rescue equipment to arrive on Monday evening. The UK is also sending an emergency medical team to assess the situation on the ground.
The foreign secretary James Cleverly tweeted: “The UK is sending immediate support to Türkiye including a team of 76 search & rescue specialists, equipment and rescue dogs.
“In Syria, the UK-funded White Helmets have mobilised their resources to respond.
“We stand ready to provide further support as needed.
Rishi Sunak said: “My thoughts are with the people of Türkiye and Syria this morning, particularly with those first responders working so valiantly to save those trapped by the earthquake.
“The UK stands ready to help in whatever way we can.”
Former Premier League footballer, Christian Atsu, is among those trapped beneath the rubble after the Ghanian international made his debut for Turkish team Hatayspor on Sunday night.
French president Emmanuel Macron said: “Terrible images come to us from Turkey and Syria after an earthquake of unprecedented force.
“France stands ready to provide emergency aid to the populations on the spot. Our thoughts are with the bereaved families.”
German chancellor Olaf Scholz: “We are following the news of the earthquake in the Turkish-Syrian border region with shock,” Olaf Scholz, the German chancellor, said on Twitter. Germany will of course send help.”
The European Union deployed aid workers and Poland has sent dozens of firefighters and some rescue dogs.
In Malatya province, not far from the epicentre, 130 buildings had collapsed. Rescuers in the city of Diyarbakir were seen calling for silence as they listened for survivors in a destroyed 11-storey building, one of 15 known to have fallen there.
The Turkish Red Crescent has issued a plea for blood donations.
Buildings were also toppled in Aleppo and Hama in Syria, while buildings shook in Damascus. Emergency rooms are packed out in the rebel-held regions there.
The area on both sides of the border is home to millions of displaced Syrians as a result of the long-running civil war, many living in squalid conditions already.
Millions will be forced to sleep outside of their destroyed homes after the earthquake ruined their homes, with temperatures having plunged to around zero.
President Erdogan said: “We hope that we will get through this disaster together as soon as possible and with the least damage.”
The earthquake measured some 11 miles deep, according to the US Geological Survey. Major fault lines that often trigger earthquakes run through Turkey.
By Will Taylor