Internet users have started to upload numerous videos of a blast that occurred in Russia's Nizhny Novgorod region. The videos feature a giant smoke cloud appearing after an explosion at the Kristall Explosives Plant.
According to the emergency services spokesman, the blast was caused by a breach of the technological process, there is still a risk of additional explosions. Four people have reportedly been injured in the blast.
There is still no information about the scale of the explosion or the damage caused.