The Ukrainian Air Force says a "serious shortage" of interceptor missiles meant none of the 23 ballistic missiles fired by Russia at Kyiv on Sunday night were shot down. Ukrainian President Volodymyr Zelensky has appealed for allies to take "strong decisions" at this week's Nato summit to provide Kyiv with air defences. After the strikes, he said the Ukrainian military had been successful in intercepting cruise missiles and drones – but not ballistic missiles. Zelensky warned that Moscow would continue to hit residential buildings as long as defensive Patriot missiles "remain in our allies' stockpiles".