But it remained far from clear who might be behind any foul play, if proven, on the Nord Stream pipelines that Russia and European partners spent billions of dollars building.
Register now for FREE unlimited access to Reuters.com RegisterPoland's prime minister blamed sabotage for the leaks, without citing evidence.
Russia, which slashed gas deliveries to Europe after the West imposed sanctions over Moscow's invasion of Ukraine, also said sabotage was a possibility and that the leaks undermined the continent's energy security.
CUTTING SUPPLIESRussia reduced gas supplies to Europe via Nord Stream 1 before suspending flows altogether in August, blaming Western sanctions for causing technical difficulties.
The Swedish Maritime Administration (SMA) said two leaks on Nord Stream 1, one in the Swedish economic zone and another in the Danish zone, were northeast of Denmark's Bornholm.