EU Threatens Retaliation if Nord Stream Sabotage Proven EU Foreign Policy chief Josep Borrell believes Tuesday’s damage to the Nord Stream pipelines was deliberate sabotage, and has warned it will be met with a “robust” response. Reports emerged on Tuesday of explosions from under the Baltic Sea with unusual leaks discovered on the Nord Stream 1 & 2 pipelines. Danish PM Mette Fredriksen said that authorities insist it was a deliberate act, but added that there was “no information indicating who could be behind it,” despite Polish MEP Radoslaw Sikorski insinuating on Twitter that the US was responsible. Subscribe to RT