About a dozen activists were arrested Monday morning outside the Supreme Court protesting against the Atlantic Coast Pipeline, refusing to unblock the streets.

“We will not let you build this pipeline!” they chanted while put into plastic handcuffs.

The Supreme Court is hearing arguments today over whether to reissue a permit for the construction of the Atlantic Coast Pipeline, which had been blocked by a lower court.

President Trump supports the pipeline’s construction, which would pump gas through West Virginia, Virginia, and North Carolina.