President carries out biggest government shake-up since start of war as deadly attacks continue

Ukraine’s foreign minister, Dmytro Kuleba, has resigned as part of a wide-ranging government reshuffle, designed to give what the president, Volodymyr Zelenskiy, called “new strength” to his embattled country.

Kuleba’s departure – announced in a handwritten note – came as Russia continued its relentless air barrage.