Commander-in-Chief Oleksandr Syrskyi on Feb. 3 named Ukraine's operation in Russia's Kursk Oblast and strikes against military facilities deep inside Russian territory as Kyiv's key battlefield priorities.

The Ukrainian army said four people were killed and dozens - many of them elderly - were injured in the town of Sudzha in the Kursk region, which has been under Ukrainian control for five months. More than 80 people are reported to have been rescued from the building.

The 52-year-old was on his way back to the frontlines and is believed to have died instantly along with another officer.