Opponents of the Dakota Access Pipeline demonstrate in Bismarck in August 2016. (Kyle Martin/For the North Dakota Monitor)MANDAN, N.D. (North Dakota Monitor) — Greenpeace provided supplies, intel and training to demonstrators who spent months camping near the Dakota Access Pipeline river crossing in south central North Dakota,

The case is tied to protests in 2016 and 2017 of the Dakota Access Pipeline and its controversial Missouri River crossing upstream of the Standing Rock Sioux Tribe’s reservation. The tribe has long opposed the pipeline as a risk to its water supply. The pipeline was completed in 2017.

A trial is underway in North Dakota in a lawsuit against Greenpeace over its support for protests of the Dakota Access Pipeline. Filed by Texas-based Energy Transfer, the lawsuit alleges Greenpeace in 2016 engaged in or supported unlawful behavior by protesters of the pipeline,