There was a danger in the North Sea. A Russian plane flew near British ships. The plane was a Tupolev Tu-142. It did not answer radio calls.
The Russian plane dropped sonar buoys. These are tools to find submarines. Britain says this is not professional. It was not safe for the ships.
Two British F-35 fighter jets took off. They left from the carrier ship HMS Prince of Wales. The jets escorted the Russian plane away. The British protect cables under the sea.