European Commission chief Ursula von der Leyen said on Tuesday that the Nord Stream gas leak was caused by sabotage and warned of the “strongest possible response” if active European energy infrastructure was attacked, Reuters reported.

Ursula von der Leyen in KyivPhoto: Yefrem Lukatsky / AP / Profimedia

“I spoke to (Danish Prime Minister Mette) Frederiksen about the Nordstream sabotage,” von der Leyen said on Twitter, adding that it was now important to investigate the incidents to gain full clarity on “what happened and why.”

“Any deliberate disruption of active European energy infrastructure is unacceptable and will lead to the strongest response,” she warned.

Earlier, Mette Frederiksen stated that the leaks found in the Baltic Sea from the Nord Stream gas pipelines were clearly caused by deliberate actions and could not be the result of accidents.

Swedish Prime Minister Magdalena Andersson said on Tuesday that two explosions linked to leaks from the Nord Stream gas pipeline had been detected, and that intelligence suggested a possible sabotage, although it was not an attack on Sweden.