The Zagorsk Optical-Mechanical Plant in Moscow Oblast, where an explosion occurred on 9 August, participated in the development of a next-generation stealth bomber. Source: Russian media outlet Agentstvo Quote: "As evidenced by the public procurement website, the company not only continues to supply optics to Russian security forces, but since 2019 has been involved in the development of the Russian strategic bomber-missile carrier of the new generation, Poslannik (Messenger).