Germany's federal public prosecutor on Monday announced the start of an investigation into leaks in the Nord Stream 1 and Nord Stream 2 gas pipelines,
DW reports.
Germany now joins Denmark and Sweden in seeking to get to the bottom of leaks that saw massive amounts of gas released into the Baltic Sea after both pipelines were ruptured on September 26.
Federal prosecutors are investigating "persons unknown" suspected of "anti-constitutional sabotage" on the pipelines as well as "deliberately causing an explosion."
"Yes, we have started an investigation," a spokesperson for the prosecutor's office told Reuters news agency.
The investigation will allow German authorities to gather evidence to determine if a crime was indeed committed.
Germany's federal prosecutor's office usually only opens probes into cases that concern national security, such as terror attacks.
The office said its involvement in the pipeline leaks was justified in that a "violent attack on the energy supply could impact the external and internal security" of Germany, a spokesperson told news agency AFP.
German Federal Justice Minister Marco Buschmann promised investigators would work in coordination with European partners to ascertain who may have been behind the suspected attack. Buschmann added, "We will not be intimidated by attacks on the Nord Stream pipelines."
Federal prosecutors say the probe is primarily aimed at "identifying the perpetrator or perpetrators as well as the possible motive."
Sweden's Prime Minister Magdalena Andersson on Monday said Stockholm would not share findings with Russia. Moreover, Sweden said it rejects Russian calls to be part of a joint investigation, though said Moscow was free to conduct its own investigation should it choose to do so.