Per CNN, Sunday 2/27/22:

The Ukrainian military has claimed successful attacks by its Turkish-made force of drones against Russian forces. On Sunday, the Armed Forces of Ukraine released footage showing the destruction of armor by a drone, and said it was carried out against a Russian BUK surface-to-air missile system. Valerii Zaluzhnyi, the Armed Forces Commander-in-Chief, said the drone attack took place near the town of Malyn, 100 kilometers (about 62 miles) northwest of Kyiv. The Ukrainian government began receiving the Bayraktar TB2 drones from Turkey last year.