Sweden's prime minister said on Tuesday that two blasts had been detected in relation to the leaks of the Nord Stream pipelines with information suggesting likely sabotage, though this did not represent an act of war against Sweden.
Magdalena Andersson told a news conference the Swedish government was in close contact with partners such as NATO and neighbours such as Denmark and Germany concerning the developments.
"We have Swedish intelligence, but we have also received information in our contacts with Denmark, and based on this concluded that this is probably a deliberate act. It is probably a matter of sabotage," Andersson said.
"It is not a matter of an attack on Swedish or Danish territory. But that said, the government is taking what happened very seriously, not the least in light of the current security situation on our close proximity," she added.
Europe was investigating major leaks in two Russian pipelines that spewed gas into the Baltic Sea near Sweden and Denmark on Tuesday as Sweden launched a preliminary probe into possible sabotage.
(Reporting by Niklas Pollard and Anna Ringstrom, editing by Terje Solsvik)