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In the video posted first to Tik Tok and then on Facebook, a group of people attempt to cross a river near Mt Cook in their truck when it is overcome with water and begins to sink.
It does not appear anyone was injured in the river crossing attempt.
The truck is later towed out of the river.
The video received more than 200,000 views in just one day along with nearly 3000 comments.
"Omg! My heart is red line, that freaks me out," one commenter said.
"Everyone calling them clowns. But disregard that, people attempt this crossing all the time." another commented.