A person of interest was taken into custody after a suspicious package was found on Thursday on the steps of the U.S. Supreme Court building.

The incident came only hours after the High Court struck down affirmative action policies at colleges and universities in a 6-3 vote.

“We are assisting the Supreme Court Police with a suspicious package. Out of an abundance of caution, we are also helping keep the area clear. We cannot provide further information about another agency’s case, but we will keep the community updated about our involvement,” the Capitol Police posted on Twitter.

WJLA-TV in Washington was at the scene as authorities took at least one person into custody.