Video shared online shows an explosion in Sergiyev Posad, north-east of Moscow. Subscribe to Guardian News on YouTube ► 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. The Guardian publishes independent journalism, made possible by supporters. Contribute to The Guardian today ► Sign up to the Guardian's free new daily newsletter, First Edition ► Website ► Facebook ► Twitter ► Instagram ► The Guardian on YouTube: The Guardian ► Guardian Australia ► Guardian Football ► Guardian Sport ► Guardian Live ► #Moscow #Explosion #Russia #News
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