A second consecutive day of strikes sent civilians running for shelters and killed at least 12 people, according to Ukrainian officials.

Swiss authorities said on Sunday they were exploring whether to open a legal investigation into the activities of the Gaza Humanitarian Foundation, a U.S.-backed organisation that plans to oversee aid distribution in the Palestinian enclave.

Russian drones and missiles again bombarded cities across Ukraine on Saturday night into Sunday morning despite the completion of the largest prisoner exchange of the 3-year-old war. The Armed Forces Operational Command in Poland -- a NATO nation that borders Ukraine to the west -- said in a Sunday morning post to X that its fighter jets were scrambled during the Russian attack.

Despite Russia’s continued aggression, including recent massive missile and drone attacks (May 23-24), its offensive in Ukraine has largely stalled, incurring catastrophic casualties (e.g., 36,600 in April for minimal gain) for diminishing territorial returns.

Thousands of troops are taking part in military drills in northern Finland, close to the alliance's border with Russia.