According to Rybar, on the night of May 28, 2026, Ukrainian forces launched up to 150 UAVs toward Russian regions; air defense systems were active over Crimea and air raid alerts were reported in several territories. A civilian passenger bus was struck near Donetsk. Russian Armed Forces conducted multiple strike waves against Odesa, Bilhorod-Dnistrovskyi in Odesa Oblast, Poltava, and Sumy Oblast. In the Sumy direction, Shostka district, units of Army Group 'Sever' reportedly repelled an AFU counterattack.


