Missiles pounded the Ukrainian capital on Friday as Russian forces pressed their advance and Ukrainian President Volodymyr Zelenskiy pleaded with the international community to do more, saying sanctions announced so far were not enough, Associated Press reported.

Air raid sirens wailed over the city of 3 million people, where some were sheltering in underground metro stations, a day after Russian President Vladimir Putin launched an invasion that has shocked the world.

Ukrainian officials said a Russian aircraft had been shot down and crashed into a building in Kyiv overnight, setting it ablaze and injuring eight people.

A senior Ukrainian official said Russian forces would enter areas just outside the capital later on Friday and that Ukrainian troops were defending positions on four fronts despite being outnumbered.

Windows had been blasted out of a 10-storey apartment block near Kyiv’s main airport, where a two-metre crater filled with rubble showed where a shell had struck before dawn. A policeman said people were injured there but not killed.

“How we can live through it in our time? What should we think. Putin should be burnt in hell along with his whole family,” said Oxana Gulenko, cleaning broken glass from her room. A neighbour, Soviet army veteran Anatoliy Marchenko, 57, could not find his cat that had run away during the shelling.

“I know people there, they are my friends,” he said of Russia. “What do they need from me? A war has come to my house and that’s it.”

Witnesses said loud explosions could be heard in Kharkiv, Ukraine’s second-biggest city, close to Russia’s border, and air raid sirens sounded over Lviv in the west. Authorities reported heavy fighting in the eastern city of Sumy.