Russian investigators are set to re-examine the chilling mystery of a deadly hiking trip made by group of Soviet students in 1959. The story spurred more than 70 theories and even inspired Hollywood thriller, ‘The Devil’s Pass’.

Known as the Dyatlov Pass incident the deaths of a Soviet student hiking group in a remote area in the Urals six decades ago remains one of Russia’s most chilling unsolved mysteries. It shocked and bewildered investigators right from the start. After the original probe failed to produce any results, the case was shelved and, by some accounts, even classified.

The eerie story inspired Hollywood director Renny Harlin to make the thriller Devil’s Pass in 2013. Now the authorities are determined to finally uncover what happened.

Investigators are officially reopening the probe, spokesperson for the Prosecutor General’s Office, Aleksandr Kurennoy, announced on Friday. The victims’ “relatives, media and the public want to know the truth,” he said.

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