Washington (CNN) - Police arrested more than a dozen people inside the U.S. Capitol on Thursday and more than two dozen outside it as they protested the detention of terrorism suspects at the U.S. naval base at Guantanamo Bay, Cuba.
The protest came the day before the one-year anniversary of President Barack Obama's pledge to close the detention facility.
The protesters, who said they are part of a group called Witness Against Torture, said they are upset Obama has not closed the prison despite his executive order to do so by Friday.
U.S. Capitol Police arrested 14 people inside the Capitol and another 28 just outside on charges of disorderly conduct and unlawful assembly, according to spokeswoman Sgt. Kimberly Schneider.
The protesters said they started their protest earlier in the day at the White House and marched to the Supreme Court before going to the Capitol.
"We need to bring it out of the shadows and into the light. I think a lot of people were under the impression that Guantanamo Bay detention center is already in the process of being closed, and it's not going to be closed tomorrow and these people are continuing to suffer," said protester Justin Norman.
Norman said most of the protesters came to the Capitol with the intention of being arrested to draw attention to the prisoners at Guantanamo.
Obama has said he intends to close to prison but the government is still trying to determine what to do with the remaining detainees.