A firefighter checks an area after a shelling, amid Russia's invasion of Ukraine, in Kyiv, Ukraine April 28, 2022. Photo: Reuters

Fire burns in a building after a shelling, amid Russia's invasion of Ukraine, in Kyiv, Ukraine April 28, 2022. Photo: Reuters

Rescuers work at a site of a building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine April 28, 2022. Photo: Reuters

Rescuers work at a site of a building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine April 28, 2022. Photo: Reuters

Rescuers work at a site of a residential building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters

Rescuers work at a site of a residential building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters

Rescuers work at a site of a residential building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters

Emergency sappers inspect remains of a cruise missile which hit a residential building, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters

Rescuers work at a site of a residential building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters

Rescuers work at a site of a residential building damaged by a missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released on April 29, 2022. Photo: Reuters