Oleksandr Shtupun, spokesperson for Ukraine’s joint forces south, told the UNIAN news agency that intensifying Russian operation of sub-sonic Su-25s close to front lines in support of Kremlin ground troop assaults has increasingly brought the single-seat aircraft into the range of shorter-ranged Ukrainian ground-based air defense systems that are able to shoot them down.

https://www.kyivpost.com/post/22962