Russia-Ukraine war: List of key events, day 543

A Russian missile attack on the northern Ukrainian city of Chernihiv killed seven people and wounded 144, according to officials. President Volodymyr Zelenskyy said the dead included a six-year-old girl and that there were 15 children among the wounded. "Our soldiers will respond to Russia for this terrorist attack – a tangible answer," he pledged. A United Nations official denounced the raid, which came during the Orthodox holiday of the Transfiguration of the Lord, as "heinous". The strike hit a theatre in Chernihiv's main square during a gathering of drone manufacturers and aerial reconnaissance training schools, organiser Mariia Berlinska confirmed. Berlinska said the event was officially agreed on in advance with the local authorities and venue.