Ruamkatanyu Foundation rescuers are seen drillining ahead of the operation at the Tham Luang cave complex
Ruamkatanyu Foundation rescuers are seen drillining ahead of the operation at the Tham Luang cave complex, where 12 boys and their soccer coach are trapped, in the northern province of Chiang Rai, Thailand, in this screen grab of a video obtained on social media and taken July 7, 2018. FACEBOOK/ANYAWUT PHO-AMPAI/via REUTERS