Blast kills 100 in Russia

AN explosion has torn through a nightclub in the Russian city of Perm, killing at least 100 people, media reports say.

Details are sketchy but Russian news agencies report dozens more were hurt and that 200 people had been inside.

Emergency officials quoted by state-run news agency RIA-Novosti said the cause was fireworks but did not specify if those were being used in a show at the club or if they were in storage.