Greenpeace has deployed boulders in the North Sea to deter industrial fishing that Greenpeace says damages marine life, including porpoises. The group says it has created an underwater barrier designed to prevent “destructive fishing” and to protect an area set aside as a marine protected area.

According to multiple outlets, activists carried out the action around the Southern North Sea marine protected area, which Greenpeace describes as heavily bottom-trawled. The Guardian and Sky News both frame the move as an attempt to stop bottom trawling and snagging of industrial trawlers’ gear by forming a barrier of stones.

Evening Standard adds that celebrities have had their names placed on the boulders, highlighting a public-facing element of the campaign. Across the coverage provided, the reporting broadly agrees on the method (dropping boulders to form an underwater barrier) and the intended target (bottom or industrial trawling in the protected area), with differences mainly in emphasis rather than core facts.