A powerful 7.2-magnitude earthquake struck eastern Turkey on Sunday, killing at least 85 people and sparking widespread panic as it collapsed dozens of buildings into piles of twisted steel and chunks of concrete.

Tens of thousands of residents fled into the streets running, screaming and trying to reach relatives on cell phones. As the full extent of the damage became clear, desperate survivors dug into the rubble with their bare hands, trying to rescue the trapped and the injured.