The Ukrainian president, Volodymyr Zelensky, was speaking at the close of a summit for peace in Switzerland. Also: Israel\u2019s prime minister, Benjamin Netanyahu, has described the introduction of daily "tactical pauses" in military activity in a part of southern Gaza as \u201cunacceptable\u201d, and the original multi-coloured dancefloor used in the 1977 film, Saturday Night Fever, has been sold at auction.