Adana: Rescuers raced Tuesday to find survivors in the rubble of thousands of buildings brought down by a 7.8 magnitude earthquake and multiple aftershocks that struck eastern Turkey and neighbouring Syria, with the discovery of more bodies raising the death toll to 4,983.
UPDATE: Death toll in Turkey, Syria earthquake crosses 8,200
Countries around the world dispatched teams to assist in the rescue efforts, and Turkey's disaster management agency said more than 24,400 emergency personnel were now on the ground.
Nurgul Atay told The Associated Press she could hear her mother's voice beneath the rubble of a collapsed building in the city of Antakya, the capital of Hatay province, but that her and others efforts to get into the ruins had been futile without any rescue crews and heavy equipment to help.
"If only we could lift the concrete slab we'd be able to reach her," she said.
"My mother is 70-years-old, she won't be able to withstand this for long."
Across Hatay province, just southwest of the earthquake's epicentre, officials say as many as 1,500 buildings were destroyed and many people reported relatives being trapped under the rubble with no aid or rescue teams arriving.
In areas where teams worked, occasional cheers broke out through the night as survivors were brought out of the rubble.
The quake, which was centered in Turkey's southeastern province of Kahramanmaras, sent residents of Damascus and Beirut rushing into the street and was felt as far away as Cairo.
Also read: Here are five deadliest earthquakes in the history of Turkey
The medical aid organisation Doctors Without Borders confirmed Tuesday that one of its staff members was among the dead after his house in Syria's Idlib province collapsed, and that others had lost family members.
"We are very shocked and saddened by the impact of this disaster on the thousands of people touched by it, including our colleagues and their families," said Sebastien Gay, the group's head of mission in Syria.
Gay said health facilities in northern Syria were overwhelmed with medical personnel working around "around the clock to respond to the huge numbers of wounded."
In Turkey's Hatay province, thousands of people sheltered in sports centres or fair halls, while others spent the night outside, huddled in blankets around fires.
A navy ship docked on Tuesday at the province's port of Iskenderun, where a hospital collapsed, to transport survivors in need of medical care to the nearby city of Mersin.
Thick, black smoke rose from another area of the port, where firefighters have not yet been able to douse a fire that broke out among shipping containers that were toppled by the earthquake.
In the Turkish city of Gaziantep, a provincial capital about 33 kilometers (20 miles) from the epicentre, people took refuge in shopping malls, stadiums, mosques and community centres.
At least 3,381 people were killed in 10 Turkish provinces, with more than 20,000 injured, according to the latest figures from Turkish authorities on Tuesday.
The death toll in government-held areas of Syria climbed to 769 people, with some 1,450 injured, according to the Health Ministry.
In the country's rebel-held northwest, groups that operate there said at least 450 people died, with many hundreds injured.
Turkish President Recep Tayyip Erdogan declared seven days of national mourning.
Authorities fear the death toll will keep climbing as the rescuers look for survivors among tangles of metal and concrete spread across the region beset by Syria's 12-year civil war and refugee crisis.
In the latest pledges of international help, South Korean President Yoon Suk Yeol said he was preparing to swiftly dispatch a 60-person search and rescue team as well as medical supplies and 50 soldiers.
Pakistan's government sent a flight carrying relief supplies and a 50-member search and rescue team early Tuesday, and said there will be daily aid flights to Syria and Turkey from Wednesday.
India said it would send two search and rescue teams, including specially trained dogs and medical personnel.
Pakistani Prime Minister Shehbaz Sharif will travel to Ankara Wednesday to express his condolences and solidarity, according to a statement from Islamabad.
U.S. President Joe Biden called Erdogan to express condolences and offer assistance to the NATO ally.
The White House said it was sending search-and-rescue teams to support Turkey's efforts.
The quake piled more misery on a region that has seen tremendous suffering over the past decade.
Also read: Drone captures devastation in Syria caused by 7.8 magnitude earthquake
On the Syrian side, the affected area is divided between government-controlled territory and the country's last opposition-held enclave, which is surrounded by Russian-backed government forces.
Turkey is home to millions of refugees from the Syrian civil war.
In the rebel-held enclave, hundreds of families remained trapped in rubble, the opposition emergency organisation known as the White Helmets said in a statement.
The area is packed with some 4 million people displaced from other parts of the country by the war.
Many live in buildings that are were already damaged by military bombardments.
Strained medical centres quickly filled with injured people, rescue workers said. Some facilities had to be emptied, including a maternity hospital, according to the SAMS medical organisation.
More than 7,800 people were rescued across 10 provinces, according to Orhan Tatar, an official with Turkey's disaster management authority.
The region sits on top of major fault lines and is frequently shaken by earthquakes.
Some 18,000 were killed in similarly powerful earthquakes that hit northwest Turkey in 1999.
The U.S. Geological Survey measured Monday's quake at 7.8, with a depth of 18 kilometers (11 miles).
Hours later, another quake, likely triggered by the first, struck more than 100 kilometers (60 miles) away with 7.5 magnitude.
The second jolt caused a multi-story apartment building in the Turkish city of Sanliurfa to topple onto the street in a cloud of dust as bystanders screamed, according to video of the scene.
Thousands of buildings were reported collapsed in a wide area extending from Syria's cities of Aleppo and Hama to Turkey's Diyarbakir, more than 330 kilometers (200 miles) to the northeast. (AP)