BISMARCK, N.D. (AP) — An appeals court ruled Tuesday that a federal judge in North Dakota was correct in not barring police from using harsh methods against Dakota Access pipeline protesters. There have been no protests since February, but the decision will allow a lawsuit to proceed in which pipeline opponents allege they were subjected to police brutality and their civil rights were violated. The plaintiffs sued last November seeking to stop police from using tactics against protesters such as chemical agents and water cannons. U.S. District Judge Daniel Hovland refused the request and they appealed, putting on hold the rest of their lawsuit, which seeks unspecified damages for alleged police brutality and rights violations. The pipeline was built by Dallas-based Energy transfer Partners.