The world’s eyes are on North Dakota, where the fight against the Dakota Access Pipeline is ongoing, but protestors are also building momentum in Iowa. Yesterday (August 31), 30 people were arrested in Boone, Iowa for disrupting the pipeline’s construction, which has been built to 22 percent completion in Iowa.

As The Des Moines Register reported, about 100 attended the rally, making it one of the state’s biggest actions against the pipeline. “Organizers vowed afterward that additional demonstrations will be forthcoming, along with more arrests,” the newspaper notes. This comes two days after a federal judge in Des Moines, Iowa denied a restraining order request against protestors for Dakota Access LLC, the company behind the pipeline. 

Two organizations, Bold Iowa and Iowa Citizens for Community Improvement, are leading the opposition. Bold Iowa plans to organize more protests, according to The Des Moines Register. Farmland owners also filed two lawsuits in the Cherokee County District Court against Dakota Access.

In North Dakota, where the Standing Rock Sioux Tribe is leading the battle, there were significant developments yesterday. The United Nations called on the U.S. to give the tribe a fair chance to voice concerns in a statement released online. 

Additionally, eight people were arrested at a site after Dale American Horse Jr. of the Standing Rock Sioux Tribe chained himself to digging equipment. “People are using civil disobedience as a means to raise awareness of the issues and the need to protect the water and as a way to delay construction of the Dakota Access Pipeline,” said Dallas Goldtooth, an organizer with the Indigenous Environmental Network, to Inforum.

The 1,172-mile-long pipeline is set to run through four states, including South Dakota and Illinois. It will carry as much as 570,000 barrels of crude oil a day from the Bakken oil fields in North Dakota to major U.S. markets.