Ukrainian authorities say a Russian drone and missile attack on Ukraine’s capital killed at least six people including a 6-year-old boy.

The assault came soon after President Trump threatened new sanctions against Moscow if the bloodshed didn’t let up.

A t least six people were killed and more than 50 others injured after a barrage of Russian drones and missiles struck Kyiv overnight, Ukrainian officials said. One of the dead includes a six-year-old boy, while three other fatalities were confirmed at the site of an apartment block which collapsed following a strike.