Russian nightclub fire: At the scene of blaze that left at least 13 dead
At least 13 people have died after a fire broke out in a busy nightclub in Kostroma, Russia.
According to state media, investigators believe a man fired a flare gun while inside the club.
Rescuers said 250 people were evacuated from the building.
Read more: Deadly fire in Russian bar started by 'flare gun'