Moscow will complete the investigation of attack against the Nord Stream pipelines, and is in contact with Copenhagen regarding legal assistance, Russian Ambassador to Denmark Vladimir Barbin said in an interview with TASS. "The investigation of the terrorist crime against Nord Stream will be completed in Russia. You can't stop in the middle. We continue to contact the Danish side to obtain legal assistance in this criminal case and to encourage Copenhagen to unconditionally fulfill its legal obligations in accordance with the international treaties against terrorism to which Denmark is a party," he said.