Liquidation of the consequences of the Chernobyl nuclear power plant accident

September 1986. USSR. Ukrainian SSR. Kiev region. Specialists of the Construction Department No. 605 of the USSR Ministry of Medium Machine Building during the construction of a cascade wall of the protective "Shelter" over the damaged fourth power unit of the V. I. Lenin Chernobyl Nuclear Power Plant. On April 26, 1986, an explosion occurred at the fourth power unit of the NPP during equipment testing during the reactor shutdown for routine preventive maintenance. The exact date of the photo is unknown. Valery Zufarov/TASS