Was the Nord Stream pipeline attacked and if so by who?

In the past couple of days, an anti-American tone has escalated through foreign social media, particularly in Austria and Germany.

Both Germany and Austria have openly accused the U.S. Navy of having carried out attacks on the Nord Stream Pipeline, having just been in the Baltic Sea.

A perhaps telling clip of Biden, from early this year, has made its rounds through social media. In the video, Biden makes remarks about shutting down Nord Stream 2 should Russia invade Ukraine.

"If Russia invades... there will be no longer a Nord Stream 2. We will bring an end to it."

When asked by a reporter how the president would plan on shutting down the pipeline when it is in German control, he responded with a smirk, "I promise you we will be able to do it."

Accusations are also being made against Russia. Some believe the leak was a sophisticated attack by Russia and or Russian proxies to gain the support of its people and by means of psychological warfare, turning NATO Allies against each other.