As noted by the Russian military, at 11:52 the British ship crossed the Russian border and entered the territorial sea at Cape Fiolent for three kilometers. He was warned about the use of weapons in the event of a border violation, but the destroyer crew did not react.
At 12:06 and 12:08 the border patrol ship opened warning fire. After another nine minutes, the Su-24m aircraft performed warning bombing, dropping four OFAB-250s in the direction of the destroyer.
https://ria.ru/20210623/korabl-1738233635.html