UN Secretary General Ban Ki-moon condemned the attack on an installation of the world organization in the Afghan city of Herat to balance various attackers dead.
In a statement issued here, the top UN official confirmed that no casualties were reported among the staff of the UN Assistance Mission in Afghanistan (UNAMA).
The target was a building that serves as effective accommodation of the quota and other UN agencies in the Asian country.
Ban Ki-moon reiterated his organization's determination to maintain its presence and programs implemented in Herat.
Last week, the Security Council extended the UN for one year the stay of troops Atlantic Treaty Organization (NATO) in Afghanistan.
The extension of the mandate of ISAF called Security was approved by all 15 members of that body in a resolution that warned about the dire situation in the Asian country.
The text urged to increase the quota, now formed by 120 thousand troops (78 thousand of them Americans) to meet the increased activity of the Taliban, the Al-Qaeda and other illegal armed groups.