Jake Sullivan, the US national security adviser, commented on the "apparent sabotage" of the keyNord Stream gas line connecting Russia and Europe.

Sullivan said he spoke to his counterpart about the apparent sabotage. Efforts to investigate and safeguard Europe's energy security are supported by the U.S.

—Jake Sullivan (@JakeSullivan46) September 28, 2022

There was a leak in the Baltic Sea on Monday, according to the Danish Energy Agency. A no sail zone around the area has been established by the Danes.

Insider was told by a press representative for the Swedish Maritime Authority that there was a leak on theNord Stream 2 line. On the same day, there were two leaks on the Nord Stream 1 line.

Sullivan's comments are in line with statements from Germany.

According to a government source, a scenario that isn't a targeted attack is impossible. Everything speaks against one another. Germany's economy ministry does not participate in speculation, according to a spokesman. The Federal Network Agency said in an email that it was clarifying the situation.

It was difficult to imagine that the damage was accidental.

The Kremlin said it could not rule out sabotage.

Governments around the region issued warnings to ships to stay away from the leaks.

The Danes sent an Absalon-class frigate to the site of the leaks to warn ships not to come. A German government official told Insider that a no-fly zone is in place.

Europe's energy crisis is likely to get worse this winter due to the fact that most of Europe's natural gas is transported via the Nord Stream line.

More than one-third of Russia's fuel exports to Europe came from the Nord Stream 1 line.

In September, the Russian state-controlled gas giant turned off gas supplies to Europe.

Germany halted the project in February because of Russia's invasion of Ukraine. The construction of the Nord Stream 2 line was finished in September of 2021.