Ukraine’s military says it has reclaimed control over 100 square miles of territory in the Kherson region over the last 24 hours, including dozens of settlements. Ukraine’s latest battlefield gains came as Russia’s military claimed all its troops have retreated from Kherson city. Kherson is one of four Ukrainian territories Russian President Vladimir Putin claimed to have annexed in October. Elsewhere, officials in the city of Mykolaiv say Russian attacks on a residential building killed six people overnight.