Native Americans march to a burial ground sacred site that was disturbed by bulldozers during building of the Dakota Access Pipeline (DAPL), near the encampment where hundreds of people have gathered to join the Standing Rock Sioux Tribe's protest of the oil pipeline, September 4, 2016 near Cannon Ball, North Dakota.

A judge on Friday denied the Standing Rock Sioux tribe's attempt to halt the construction of the Dakota Access oil pipeline near its North Dakota reservation, but three federal agencies asked the pipeline company to "voluntarily pause" work on a segment that tribal officials say holds sacred sites and artifacts.

The Standing Rock Sioux tribe, whose cause drew thousands to a protest site in North Dakota, had challenged the Army Corps of Engineers' decision to grant permits at more than 200 water crossings for Dallas-based Energy Transfer Partners' $3.8 billion pipeline, saying that the project violates several federal laws, including the National Historic Preservation Act, and will harm water supplies. The tribe also says ancient sacred sites have been disturbed during construction.