Shocking footage from the aftermath of the earthquake in Turkey shows a high-rise building collapsing to the ground.
At least one seven storey building collapsed in the Haliliye district of Şanlıurfa province during aftershock of a 7.8-magnitude earthquake, footage released by the local Urfa TV showed.
It crashes to the ground in seconds with a huge rumbling crash, as people are heard shouting and running away.
The quake hit southern Turkey and northern Syria early Monday, killing at least 3,400 people and wounding 9,622 with many more trapped in the rubble.
The number of wounded is now 8,533 in Turkey and 1,089 in Syria.
The seven-story building was filmed from multiple angles as it collapsed during daylight hours. It is unknown if anyone was injured in the horrifying collapse shown in this footage.
Multiple videos from across Turkey show that many buildings are subject to the same horrors, with some commentators sharing their concerns over the building regulations which have allowed collapses to happen so easily.
In another video, rescuers were seen working in the rubble at the base of tall buildings when metres away another one collapsed sending rubble flying through the air.
Among the cities that were badly hit were Gaziantep, Malatya, Diyarbakir and Sanliurfa in Turkey and Aleppo and Idlib in Syria.
Sky News' verification team have found a large portion of a street in Kahramanmaras, Turkey, has been damaged and they estimate that at least 12 buildings in the video have collapsed.
Comparing images from the site of the devastation with Google Maps images, they were able to analyse the vast scale of destruction on the street.
"While we were sleeping, the house started shaking; I immediately ran to my children; I did not know which one to carry; I could not reach the door, the distance was very far, and a minute of time was like years of helplessness and fear, and the fear continues with the aftershocks," a World Vision staff member in Northern Syria said to the press.
They continued: "Most of the people are on the streets in the snow and rain, with many destroyed buildings, many victims, and many still trapped under the rubble."
Initial reports from the International Rescue Committee in Syria indicate that the impact has been devastating in areas that already host a high number of displaced and vulnerable families.
As the number of injured continues to rise there are very real concerns about the ability of an already decimated health system to cope inside Syria.
Following years of conflict, hospitals in northern Syria are overstretched as they grapple with a recent cholera outbreak.