Flowers and candles are placed at the monument for Chernobyl victims in Slavutych, where the power station's personnel lived, some 50 kilometers from the accident site, on Friday, April 26, 2019. Friday marks the 33rd anniversary of the Chernobyl disaster which was the world's worst nuclear accident. [Photo: AFP/Genya Savilov]"

A woman kneels to pay her respect near candles and flowers placed at the monument for Chernobyl victims in Slavutych, where the power station's personnel lived, some 50 kilometers from the accident site, on Friday, April 26, 2019. Friday marks the 33rd anniversary of the Chernobyl disaster which was the world's worst nuclear accident. [Photo: AFP/Genya Savilov]"

A man lights candles near flowers placed at the monument for Chernobyl victims in Slavutych, where the power station's personnel lived, some 50 kilometers from the accident site, on Friday, April 26, 2019. Friday marks the 33rd anniversary of the Chernobyl disaster which was the world's worst nuclear accident. [Photo: AFP/Genya Savilov]"

Young people hold candles during a memorial ceremony at the monument for Chernobyl victims in Slavutych, where the power station's personnel lived, some 50 kilometers from the accident site, on Friday, April 26, 2019. Friday marks the 33rd anniversary of the Chernobyl disaster which was the world's worst nuclear accident. [Photo: AFP/Genya Savilov]"