A woman's body was found under the rubble following Russian shelling in Kharkiv, while two people were killed by shelling in the town of Pokrovsk on Sunday.
Moscow forces' missile strikes against Ukraine on Orthodox Easter – a religious holiday celebrated in both Russia and Ukraine on Sunday – have killed at least three civilians and injured 24 others across the country, regional officials said.
Kharkiv regional Governor Oleh Syniehubov, writing on the Telegram messaging app reported the death of an 88-year-old woman in the shelling of the village of Monachynivka, east of Ukraine's second-largest city.
Vadim Filashkin, head of the military administration in the Donetsk region, said two people were killed by shelling in the town of Pokrovsk, while another two were injured in Chasiv Yar, west of the Russian-held town of Bakhmut.
Her body was recovered from the rubble of a house. Prosecutors said three people were injured.
The Kharkiv and Sumy regions also saw power cuts after reports of drone attacks and explosions.
The largely Russian-speaking city of Kharkiv, just 40 kilometres from the Russian border has come under increasing attacks, with rising fears that it may become the next focal point of Russia’s military campaign
The prosecutor’s office opened a criminal case over violation of laws of war.
Russia says it does not target civilian sites, but attacks have hit apartment blocks, schools and medical institutions.