Russia opened a new investigation into the incident in 2019, and its conclusions were presented in July 2020: that an avalanche had led to the deaths. Survivors of the avalanche had been forced to suddenly leave their camp in low visibility conditions with inadequate clothing, and had died of hypothermia. Andrey Kuryakov, deputy head of the regional prosecutor's office, said: "It was a heroic struggle. There was no panic. But they had no chance to save themselves under the circumstances." A study led by scientists from EPFL and ETH Zurich, published in 2021, suggested that a type of avalanche known as a slab avalanche could explain some of the injuries.