The attack on Friday, which killed at least four people in the capital, came two days after Russia vowed retaliation for an audacious Ukrainian drone assault.

Russia says the 'massive attack' on Kyiv was in retaliation to Ukrainian strikes. It comes after the Kremlin launched a wave of drone strikes on Ukraine’s capital late on Thursday night, forcing residents to flee underground to shelter. Volodymyr Zelenskyy reported that the assault was comprised of more than 400 drones and 40 missiles.