Cafe "Polygon" caught fire at night in Kostroma, where there were more than 250 people inside

The "Polygon" cafe in Kostroma Russia caught fire at night with over 250 people inside

At the moment 15 people are known to have died, the rest managed to be evacuated.

There was a mass fight in the cafe and one of the visitors used pyrotechnics, shooting his rival with a flare gun, which started the fire.