According to the statement, the explosion occurred in the boiler room area of the factory and the blast wave also affected the windows of several buildings near the industrial facility, according to TASS news agency.

The report said that 25 people were injured in the explosion, two of whom had to be hospitalized.

The Zagorsk optical-mechanical plant is part of the Shvabe consortium of the Rostec state corporation and is the leading developer and manufacturer of optical and optoelectronic devices for law enforcement, and industrial and medical companies.

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