Fourth leak spotted on Nord Stream pipeline

The Swedish Coast Guard has reportedly found a fourth leak on the Nord Stream pipeline.

Swedish newspaper Svenska Dagbladet quoted the Coast Guard saying it had located the leak after two pipelines running from Russia to Germany were damaged in a total of three places on September 26, per Sky News.

"Two of these four are in Sweden's exclusive economic zone," coast guard spokesperson Jenny Larsson told the newspaper.

The two other holes are in the Danish exclusive economic zone.

The suspected acts of sabotage against the gas pipelines in the Baltic Sea were likely premeditated attacks using underwater explosive devices detonated remotely, a British defence source told Sky News.

The source said mines could have been lowered to the seabed on a long line, dropped over the side of a boat or placed next to the Nord Stream pipelines with an underwater drone month or even years ago.

Gas has spewed into the Baltic Sea for three days since the leak was first detected.