Air assaults on Saturday killed at least four people. Kharkiv’s mayor described an overnight strike as “the most powerful attack” since the beginning of the war.

At least seven people were killed and 41 others were injured in massive Russian strikes across Ukraine overnight, which targeted civilian and energy infrastructure.

A Russian artillery attack on Ukraine's northeastern city of Sumy on Tuesday killed four people and injured 28, including three children, officials said.President Volodymyr Zelenskiy announced the updated death toll of four in the city in his nightly video address.