According to RIA Novosti, Andersson stressed the confidential nature of the investigation of the emergency, which does not involve the participation of other countries.
Earlier, Russian President Vladimir Putin said that Russian specialists were not allowed to investigate explosions on the Nord Stream gas pipelines.
Putin stressed that "the ultimate beneficiary of this crime" is known.
Russian Deputy Prime Minister Alexander Novak noted that Poland, the United States and Ukraine could be interested in accidents at the Nord Stream gas pipelines.
Earlier, Danish Foreign Minister Jeppe Kofod ordered his representatives in New York not to participate in a special meeting of the UN Security Council convened by Russia on September 30.
In response, Russian Foreign Ministry spokeswoman Maria Zakharova called Denmark's position on the Nord Stream issue illegal.
On September 26, sabotage occurred on two Russian export gas pipelines to Europe, Nord Stream and Nord Stream 2.