Ukraine's 110th Separate Mechanized Brigade shot down another Russian Su-25 fighter jet, the unit said on May 13.
The 47th Mechanized Brigade reported earlier in the day that it had downed a Russian Ka-52 Alligator attack helicopter.
The 110th Separate Mechanized Brigade has downed three Russian planes in the past two weeks. The brigade struck two other Su-25s on May 4 and May 11.
The unit did not specify where the aircraft was downed, but the brigade is known to be operating toward Avdiivka in Donetsk Oblast.
The Su-25 is used to provide close air support for Russian troops on the ground, helping them carry out intense attacks in multiple sections of the eastern front, which covers much of Donetsk Oblast.
Russia's total losses during the all-out war amount to about 677 aircraft, including 351 planes and 326 helicopters, according to Ukraine's General Staff. The General Staff's figure could not be independently verified.
Francis Farrell
