"Limiting the circle of the [investigation] participants to states that are either already NATO members or on the way to acceding to this alliance, turns the investigation into a politically biased one. In these circumstances, the Russian side will explore the possibility of conducting an independent comprehensive investigation at the scene," the statement said.
"The Russian side does not exclude the possibility of repairing gas pipelines, but a decision on this can be made after an inspection of the scene and assessment to the extent of damage caused to gas pipelines is made," the embassy added.
"Deliberate sabotage was committed against gas pipelines, which are one of the most important objects of Russia's energy infrastructure. Russia in this case acts as the most affected party. The owner of these gas pipelines is the Russian company Gazprom. Its property has suffered significant damage," the embassy said.