Explosion at factory near Moscow leads to speculation about its military use

Video shared online shows an explosion in Sergiyev Posad, north-east of Moscow. The blast injured 45 people, six of them severely, officials said. Andrei Vorobyov, the governor of the region surrounding the Russian capital, said the the blast occurred at a warehouse storing fireworks. Russian news agency Tass claimed emergency services found the explosion happened ‘in the area of the boiler room’. However, there is significant speculation, including from Ukrainian political adviser Anton Gerashchenko, that the Zagorsk optical-mechanical plant was used to make military products, possibly tanks

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