According to Ukrinform, the Command of the Ukrainian Air Force reported this on Telegram.
"The S-300 missile system effectively performs its work against a significant part of the objects of the Russian occupiers and can shoot down aircraft, cruise and ballistic missiles at a distance of 5 to 150 kilometers. At the same time, it doesn't matter at what distance a target flies - 10 meters or 27 kilometers," the statement reads.
The system is already performing combat missions, the command said.
The Ukrainian Air Force destroyed 15 air targets on April 28, including a Su-34 aircraft, five cruise missiles and nine UAVs.