A teenager was pulled largely unscathed from beneath the rubble of a collapsed building in the Turkish city of Gaziantep early Friday, in a dramatic rescue that belied the reality that the chances of finding many more survivors four days after a catastrophic earthquake killed tens of thousands are shrinking fast.

The 7.8 magnitude earthquake hit the border region between Turkey and Syria, an area home to more than 13.5 million people, killing more than 20,000 people. Bodies lay wrapped in blankets, rugs and tarps in the streets of some cities, with morgues and cemeteries overwhelmed.

Before dawn in Gaziantep, near the epicenter of the quake, rescuers pulled Adnan Muhammed Korkut from the basement where had been trapped since the temblor struck Monday. The 17-year-old beamed a smile at the crowd of friends and relatives who chanted “Adnan,” “Adnan,” clapping and crying tears of joy as he was carried out and put onto a stretcher.

“Thank God you arrived,” he said, embracing his mother and others who leaned down to kiss and hug him as he was being loaded into an ambulance. “Thank you everyone.”

Trapped for 94 hours, but not crushed, the teenager said he had been forced to drink his own urine to slake his thirst.