The death toll from a blast in a night club in the Russian city of Perm has risen to 101, BBC reports Saturday.

More than 140 were injured in the explosion which happened about 11:15 pm local time, 1 400 km east of Moscow.

200 people were inside the Lame Horse nightclub, including staff, friends and family of the owner, to celebrate the establishment’s eighth anniversary.

"There were fireworks launched at the scene, and one hit the plastic ceiling, setting all ablaze. People panicked and succumbed to burns, general crush and gas poisoning," the Russian ITAR-TASS agency reported, citing the Regional Public Security Minister, Igor Orlov while the Russian state-owned TV channel Vesti-24 showed bodies piled in the street outside the club.

The owner of the club, Anatoly Zak, has been detained and is behind bars pending the outcome of the investigation to be conducted by a special, government-appointed commission. 10 of the dead have been identified.

Officials have already ruled out terrorism and said that fireworks used at the party were too big for closed premises and were intended for outdoor use. The fatalities were caused mostly by smoke inhalation.