The fighters used strike UAVs.
Ukrainian border guards destroyed a group of invaders and their shelter in the Bakhmut frontline. This was reported by the State Border Service of Ukraine.
“Aerial reconnaissance of the State Border Service of Ukraine discovered enemy infantry and enemy shelter in the Bakhmut direction. With strike drones, the fighters neutralized the occupiers and mine-explosive barriers,” the report says.
Note that the Armed Forces of Ukraine have switched from defensive to offensive operations in the Bakhmut direction. In turn, the Russian military are pulling reserves on the Bakhmut axis, and are trying to hold their positions.