At least four people have been killed in the eastern Ukrainian city of Kharkiv after a series of Russian attacks.
President Volodymyr Zelenskyy described one of the attacks as a "savage killing", saying dozens of people had been injured.
It comes after Kyiv embarrassed Moscow when it launched a daring drone raid deep inside Russia last weekend, destroying dozens of bombers.
Image: Firefighters work at the site of a building hit by a Russian drone strike in Kharkiv. Pic: Reuters
Meanwhile, attempted US-led peace talks between the two appear to be floundering.
During the attacks on Saturday, Kharkiv mayor Ihor Terekhov said: "Kharkiv is currently experiencing the most powerful attack in the entire time of the full-scale war."
The first wave of the Russian strike was a large drone