A 6-year-old boy from Indiana is in critical condition after he was literally buried alive under 11 feet of sand for hours. The incident happened Friday night when the child was swallowed by a massive dune.

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Rescue workers took more than three hours to free the boy, who they say was only able to survive due to the presence of an air pocket that allowed him to breathe.

"When we pulled him out, he really didn't look good," said Brad Krigbaum, one of the workers who helped rescue the boy. "Only thing you could think of was, 'that could be your kid...'"

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Watch some of the video captured of the rescue efforts in the clip, and hear chilling 911 audio, below: