Rescued schoolboys are moved from a military helicopter to an awaiting ambulance at a military airport in Chiang Rai, Thailand, July 9, 2018.

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A military helicopter is shown in a photograph taken at night in Chiang Rai, Thailand.

Rescued schoolboys are moved from a military helicopter to an awaiting ambulance at a military airport in Chiang Rai, Thailand, July 9, 2018.

Credit:

Athit Perawongmetha/Reuters