An explosion erupted at a warehouse near the Russian capital of Moscow on Wednesday. The blast at the Zagorsk Optical-Mechanical Plant left dozens of people injured, reports said. The governor of the Moscow region said the warehouse was being used to store fireworks. Dramatic videos that circulated on social media captured the moments immediately after the blast at the Zagorsk Optical-Mechanical Plant in Sergiev Posad and showed a massive mushroom cloud looming over the area. According to The Moscow Times, the factory has produced things like night-vision devices and binoculars for the Russian security forces.

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Persons: Posad, Andrei Vorobyov, Piro Ross Organizations: Wednesday, Plant, Service, Moscow Times, TASS, Associated Press, Russia's, Firefighters, Russian Emergencies Ministry, REUTERS Locations: Moscow, Wall, Silicon, Sergiev Posad, Moscow Region, Russia, Sergiev