The eight were found dead after a guided tour of Moscow’s sewage system was washed away by floods.
On Sunday, a tour group was on a guided tour of Moscow’s sewage system when it rained.
It is said that the rain meant that the group could not get out, and the rainwater washed them away.
A rescue operation has been underway since Sunday, and on Tuesday afternoon, all eight dead have been found. Three of them will be minors, The Mirror writes.
According to the BBC Many bodies are said to have been found in the Moskva River, which flows through the city.
The news agency wrote that there were originally 20 people registered, but many people canceled the registration after they saw heavy rain.
Moscow Mayor Sergei Sobyanin described the incident as a terrible tragedy and sent condolences to the relatives of the victims.
Several tour operators offer tours through the sewer system, which was built largely in the 19th century.
There is conflicting information about the legality of these tours.
Moscow authorities say they are investigating what they call an illegal flight.
One of the organizers was arrested, while another is believed to have fled to the United Arab Emirates.
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