Relatives of the deceased members of Dyatlov's group demanded to reopen the case.

Relatives of members of Igor Dyatlov's group, who died in the mountains in the Sverdlovsk region in 1959, intend to pursue the continuation of the investigation and the initiation of a new criminal case. Lawyer Evgeny Chernousov announced this on June 2.

"We want to ensure that a criminal case is opened and an investigation is conducted," TASS quoted him as saying.

The defender represents the interests of Igor Dyatlov's sister Tatiana Perminova and some other relatives of the tourists who died at the pass. He explained that forensic medical examinations had been conducted on the already closed case, during which nine bodies of the victims were autopsied.

"Chemical examinations, as well as histology, are necessarily attached to the autopsy reports in each criminal case. <...> But they are not attached. It means that they were not held," Chernousov said.

According to the lawyer, they could confirm the possible cause of death of tourists. He added that the relatives of the victims will demand that federal TV channels stop broadcasting films with theories about the deaths of tourists that do not correspond to reality.

A group of tourists died on the night of February 2, 1959 in the Northern Urals near the pass, later named Dyatlov Pass. The tourists were found half-naked a few dozen meters from the tent. The circumstances of their deaths have long been considered unclear and mysterious. Military trials and a rare disease were mentioned among the possible causes of death of tourists.

On July 11, 2020, the Prosecutor General's Office published a final report on the causes of the mysterious deaths of tourists. The representative of the department, Andrey Kuryanov, noted that the tourists left the tents and went 50 m away towards the stone ridge to escape from the avalanche. However, due to poor visibility (no more than 16 m), they were unable to return to the tent and froze, as the temperature was below 40 degrees Celsius.

In January 2021, engineers from Switzerland simulated an avalanche that could have led to the death of Dyatlov's group in the Northern Urals in 1959. During the reconstruction, they were able to confirm the version that people died from a large mass of snow, comparing the impact of a snow slab that was moving at a speed of about 2 m / s with the results of a car crash test.