Red flowers lie on a bas-relief of firefighter Georgy Popov atop of his grave at the Mitinskoye Cemetery where several victims of the Chernobyl nuclear disaster are buried, marking the 40th anniversary of the explosion and fire at the Chernobyl nuclear power plant in Ukraine, outside Moscow, Sunday, April 26, 2026. (AP Photo/Alexander Zemlianichenko)

Russian Emergency Ministry troops and veterans lay flowers at the graves of firefighters at the Mitinskoye Cemetery where several victims of the Chernobyl nuclear disaster are buried, marking the 40th anniversary of the explosion and fire at the Chernobyl nuclear power plant in Ukraine, outside Moscow, Sunday, April 26, 2026. (AP Photo/Alexander Zemlianichenko)