Native Americans from tribes across the country converged on Washington, D.C., to begin what's planned to be four days of protests and cultural demonstrations.
Teepees were erected on the National Mall as part of the protest Thursday. A march from the mall to the White House and a demonstration across the street in Lafayette Park is planned for Friday, organizers for the group Native Nations Rise said.
The protest comes after President Donald Trump signed an executive order reviving plans for the Dakota Access Pipeline in North Dakota.
The Standing Rock Sioux tribe has fought the project for years, and over the past several months they have created an encampment near the construction zone where clashes between protesters, security and police have at times become violent.
The Standing Rock Sioux said the pipeline runs over sacred burial ground and threatens their water source where the pipeline would cross the Missouri River, 1 mile from their reservation.
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