Read Grist’s previous coverage of the Dakota Access pipeline. 

From Battleboro to D.C. and Atlanta to Oakland, protesters around the U.S. rallied Tuesday in support of the Standing Rock Sioux and their fight against the Dakota Access pipeline, which would carry about half-a-million barrels of crude oil per day across four Midwestern states and tribal lands.

According to rally organizers, a crowd of 3,000 gathered in front of the White House on Tuesday, along with members of the Standing Rock Sioux and other tribal nations. Speakers included Bernie Sanders, who told the crowd, “We cannot allow our drinking water to be poisoned so that a handful of fossil fuel companies can make even more in profits.”

The Sioux and other Native American groups have worked to stop the pipeline for over two years, but tensions have been growing ever since construction began.

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Last week, the Obama administration intervened for the first time by temporarily halting to construction of the pipeline on federal land. In a letter to employees sent Tuesday, the company building the pipeline says they remain committed to its $3.7 billion project.

See photos from rallies across America:

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