It's been five days since a devastating 7.8 magnitude earthquake struck Turkey and Syria, and teams are approaching the end of the search and rescue window, a UN liaison officer has warned.
Speaking from Adana, southern Turkey, on Saturday, Belit Tasdemir, UN liaison officer at AKUT Search and Rescue Association, told CNN: "The sheer level of, and how widespread the devastation is, is completely unprecedented in terms of what we've seen before in Turkey."
Describing the recue efforts as "mammoth," Tasdemir said the teams are working across a vast area and in "below freezing" temperatures.
"We're approaching the end of the search and rescue window, and plus the probability of finding survivors under the rubble in below freezing temperatures is becoming a lower probability."
He added that rescue teams, who have been on the ground for several days, are starting to become affected by the cold temperatures and "extreme fatigue."