Thousands of Native American demonstrators and their supporters marched to the White House on Friday to voice outrage at President Donald Trump's support for the Dakota Access and Keystone XL oil pipelines, which they say threaten tribal lands.
The protest follows months of demonstrations in a remote part of North Dakota, where the Standing Rock Sioux tribe demonstrated in an attempt to stop the Dakota Access Pipeline crossing upstream from their reservation.
That pipeline is being installed now, after Trump signed an executive order last month smoothing the path for construction. He also cleared the way for the Keystone XL project that would pipe Canadian crude into the United States.