Akhir 27, 1432 H/April 1, 2011, SPA -- President Barack Obama is condemning the attack Friday on a United Nations office in northern Afghanistan, according to AP. In a statement, Obama offered his condolences to those injured and killed, as well as their families. At least eight foreigners and four Afghan protesters were killed when a demonstration outside the office turned violent. The demonstrators were protesting a reported burning of the Quran, Muslim's holy book. Obama thanks the United Nations officials, including Afghan staff, for the work they undertake in support of the Afghan people. He says their work is essential to building a stronger Afghanistan.