At least 100 have been killed in a blast in a nightclub in the Russian city of Perm near the Ural mountains.
Local police are saying that the blast had been caused by fireworks.
They said the explosion had injured at least 60 people.
The blast happened at 11.15pm in the Lame Horse night club.
Perm has a population of 1.2m and is the 6th largest city in Russia.
