PORTLAND, Ore. (KOIN) — Hundreds of tribal members and leaders walked from Holladay Park in Northeast Portland to the US Army Corps of Engineers building on Lloyd Boulevard to protest the Dakota Access Pipeline.

Those marching are against the Dakota Access Pipeline, designed to move 470,000 barrels of domestic crude oil a day through 4 states.

Deborah Cocker from the Kiowa Tribe of Oklahoma came to Portland to visit her daughter and joined this protest.

She said the arrests of 150 people protesting at the pipeline last week was “not only injust and inhuman, it’s wrong.”

Standing Rock Sioux tribal members say the 1200-mile pipeline will damage its water supply and endanger sacred sites.

Signs reading “Water is Life” were spotted at the Portland protest, while others burned what they called “sweet grass” to bring peaceful energy to the protest.

The protesters targeted the Army Corps of Engineers building because, as Ramona Mason said, “if it wasn’t for them, the Dakota Access Pipeline would not have gotten the green light” to build from North Dakota to Illinois.

The US Army Corps of Engineers did not respond to a request for comment from KOIN 6 News.