Swedish investigators say they have found traces of explosives at the site of explosions which hit the Nord Stream 1 and 2 pipelines in September.
They've therefore concluded the explosions were an act of sabotage.
The gas pipelines run side-by-side from Russia, across the Baltic Sea off the coast of Estonia and on to Germany.
Our correspondent Giles Gibson reports from the Estonian capital, Tallinn.
IN: "Well, we've heard…"
OUT: "...inside Ukraine."
DUR: 00:47
http://www.fsnradionews.com/feeds/1118-ns-gg-generic.mp3
OUT: "...inside Ukraine."
DUR: 00:47
http://www.fsnradionews.com/feeds/1118-ns-gg-generic.mp3