Ukrainian SBU naval drones, identified as Mamai, attacked two sanctioned Russian tankers in the Black Sea. The operation targeted vessels from Russia's 'shadow fleet' to cut off oil revenues funding the war.

Around 100 Russian soldiers are reported to have been killed or wounded in a Ukrainian SBU special forces air attack on the Russian FSB headquarters in the Kherson region of Ukraine.

Ukraine's SBU is investigating the alleged executions of 306 Ukrainian prisoners of war, with the most numerous and violent cases reported in the Kursk and Donetsk regions.

Ukraine's Security Service (SBU) has apprehended an agent of Russia's FSB who was gathering intelligence on the locations of Ukrainian Defense Forces in Odesa and its surrounding region.

A major in Ukraine's Security Service (SBU) has been arrested on suspicion of leaking classified information to Russia's FSB.

A Ukrainian SBU official claims that Russia is fabricating evidence in cases against convicted Ukrainian prisoners of war to inflate their 'value' in prisoner exchanges.

Ukrainian law enforcement has detained a major from a regional unit of the Security Service of Ukraine (SBU) on suspicion of passing classified information to Russia's FSB.