These were not rockets, but FAB-500 high-explosive bombs of the middle of the last century (additionally equipped with modern planning and correction modules). These modified bombs have recently become a big headache for Ukraine, because they allow hitting fortified objects in the vicinity of the front line, while the aircraft itself is not included in the front-line air defense coverage area. The bombs themselves are almost free, Russia has a lot of them since the days of the USSR. With such bombs, even without planning and correction modules, Azovstal in Mariupol was actively bombed a year ago, breaking the resistance of the Nazis of Azov.