The suspect in the assassination of former Ukrainian parliament speaker Andriy Parubiy in Lviv confessed in court, claiming the motive was "revenge against the government".
European commission president Ursula von der Leyen says European countries are drafting "quite detailed plans" for deploying troops to Ukraine after the conflict between Kyiv and Moscow ends.
The port city of Chornomorsk in southern Ukraine suffered damage after a large-scale attack that Russia described as targeting "military infrastructure".
Shortly after firing, a Ukrainian Neptune missile launcher was destroyed by a Russian Iskander-M ballistic missile, causing a loaded missile to self-detonate.
Ukraine has raised the age at which men are allowed to leave the country from 18 to 22, believing this will encourage those who left before the conflict to return and strengthen their ties to the nation.