Residents streamed into Slavutych's central square for a midnight commemoration of the Chernobyl disaster. The vigil continues despite Russia's ongoing war and official restrictions on large gatherings.

People streamed into the central square of Slavutych in the early hours of Sunday, placing candles on a large radiation hazard symbol laid out on the ground as a midnight commemoration began for those killed in the Chernobyl disaster 40 years ago and the thousands who risked deadly radiation exposure to contain its aftermath. Residents show up for the vigil each year despite wartime curfews and official warnings against large gatherings during Russia’s war on Ukraine. The April 26, 1986 disaster...