Why Russia accuses Ukraine of "acts of terror"

This was reported by the Telegram channel of the State Border Service.

As of April 14, several “terrorist attacks” had already taken place at the Russian border crossing, for which the Russian leadership accuses Ukrainian sabotage and reconnaissance groups, the report says.

What events are Ukrainians accused of:

propaganda media stated that on 13.04 there was a shelling of the Russian border detachment in the Kursk region

The FSB of the Russian Federation reported that on April 14, a border checkpoint in the Bryansk region was fired from Ukraine.

On February 24, Russia invaded Ukraine. Bucha, Mariupol, Irpen, Kharkiv are bloodstains on the map of our country that the Russian occupiers are leaving.