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In Khasavyurt, Dagestan, a cigarette butt thrown into a sewer caused a powerful explosion that killed two people. It is reported that the incident occurred in the village of Yubilein.
Two utility employees came to check the sewerage and carry out technical work. As it turned out later, a large amount of acetylene (flammable gas) had accumulated there. The housing and communal services employees did not know this, and for some reason one of them (in violation of safety rules) threw a cigarette butt inside. There was a powerful explosion, the concrete slab above the sewer literally flew into the air, and two workers with it. They died on the spot. The blast wave and debris also destroyed the car in which the men arrived.
The Dagestan prosecutor's office has already begun an investigation. Investigators will have to figure out where there is such a concentration of acetylene gas in the sewer system. According to some Telegram channels, the owner of a nearby house was throwing carbide into the sewer.