A series of unusual leaks on two natural gas pipelines running from Russia under the Baltic Sea to Germany triggered concerns about possible sabotage Tuesday, overshadowing the inauguration of a long-awaited pipeline in Poland that will bring Norwegian gas to Europe in efforts to bolster energy independence from Moscow. Danish Prime Minister Mette Frederiksen said she “cannot rule out” sabotage after three leaks were detected over the past day on Nord Stream 1 and 2. The pipelines are not bringing gas to Europe as an energy standoff over Russia's war in Ukraine halted flows or never allowed them to begin. However, gas still fills the lines.