"Over the past 24 hours, the office reported 19 cases of fire by Ukrainian armed units," the office said on Telegram.
It said 60 rounds of various ammunition had been fired by Ukraine.
A total of 10 shelling attacks by Ukrainian troops were registered in the previous day.
The Ukrainian counteroffensive began on June 4. Kiev has thrown into battle brigades trained by NATO instructors and armed with Western equipment, including Leopard and Challenger tanks. In early October, Russian President Vladimir Putin said that Kiev's push had failed, with Ukraine suffering an estimated over 90,000 casualties.