The German government has "noted with regret" a U.S. proposal to expand sanctions over the Nord Stream 2 gas pipeline between Russia and Germany.

"New sanctions would constitute a serious interference in European energy security and EU sovereignty," a statement by the Foreign Ministry said on June 14, Radio Free Europe / Radio Liberty (RFE/RL) reported.

Read alsoU.S. Congress members call on Pompeo to hit Russia with sanctions over Nord Stream 2

A group of bipartisan U.S. senators early this month submitted legislation to stop Russia from completing the controversial natural gas pipeline along the floor of the Baltic Sea.

The United States already has taken steps to halt the $11 billion project. A bill passed late last year allowed Washington to impose sanctions on any vessel that helps Russia complete the pipeline, forcing Western-owned ships to stop work.

To get around the legislation's impact, Russia has sent its own vessel to the Baltic Sea to lay the remaining 160 kilometers of pipeline.

The new proposed legislation widens the sanctions in the existing law to include any entity that provides insurance, port facilities, or tethering services for the project as well as any company that certifies Nord Stream 2 for operation.