A former Ukrainian submarine commander who defected to Russia was killed in an explosion in Sevastopol, with unconfirmed reports identifying the victim as a Russian serviceman. This incident follows other Ukrainian military actions, including the destruction of a Russian command post and claims of damaging air defense systems in Crimea.

Russia launched a record number of drones at Ukraine in April, targeting power facilities, critical infrastructure, and residential areas across the country. Ukrainian air defenses reportedly intercepted a high percentage of these drones, which also struck regions like Zhytomyr and Odesa.

The UK government has authorized its armed forces to board Russian tankers in British waters, escalating actions against the 'shadow fleet' that helps Moscow circumvent Western oil sanctions.