Ukraine and Russia vowed fresh assaults in their four-year war after Moscow launched a massive barrage on Kyiv, killing at least 21 people, tearing open apartment buildings and sending tens of thousands to shelters.

Russia launched one of its largest ever missile and drone attacks on Kyiv late on Wednesday with blasts continuing through Thursday morning killing at least 21 people. Buildings…

Ballistic and cruise missiles and drones were used in what Kyiv's mayor, Vitali Klitschko, said was the largest attack on the city since the war began.