I condemn in the strongest possible terms the attack on the United Nations Assistance Mission in Afghanistan today. Together with the American people, I offer my deepest condolences to those injured and killed, as well as to their loved ones. The brave men and women of the United Nations, including the Afghan staff, undertake their work in support of the Afghan people. Their work is essential to building a stronger Afghanistan for the benefit of all its citizens. We stress the importance of calm and urge all parties to reject violence and resolve differences through dialogue.