Dakota pipeline protesters march downtown Seattle streets

Hundreds of people marched from Seattle City Hall to Westlake Park for a peaceful rally challenging the Dakota Access Pipeline. See photos here. 

The debate over the construction of an oil pipeline near the Standing Rock Sioux reservation in North Dakota is now a national issue. The 1,172-mile project would carry nearly a half-million barrels of crude oil daily from North Dakota's oil fields through South Dakota and Iowa to an existing pipeline in Patoka, Illinois.

Tribe members say an oil spill would permanently contaminate the reservation's water supply

Event leaders say the rally is part of the global call for solidarity action. Here's where Seattle demonstrators marched on Friday morning: 

Hundreds of people on Facebook say they are going to the rally, according to the event page.

>> Related: Federal government halts work on part of pipeline project

Standing Rock and local tribal leaders, the Sacred Water Canoe Family, Seattle city officials are scheduled to participate at the rally.

Demonstrators gathered in Kirkland earlier this week to protest the Dakota Access Pipeline.

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