A U.S. bill signed by Donald Trump on Friday included legislation imposing sanctions on companies laying pipe for Nord Stream 2, the project that aims to double gas capacity along the northern Nord Stream 1 pipeline route to Germany, Reuters said.

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Nord Stream 2, which will run along the Baltic Sea floor, will enable Russia to bypass Ukraine and Poland to deliver gas.

"Completing the project is essential for European supply security. We together with the companies supporting the project will work on finishing the pipeline as soon as possible," the groups said.

Nord Stream 2 confirmed that its contractor, Swiss-Dutch company Allseas, suspended pipe-laying activities.