Two American officers working in the Afghan interior ministry were killed Saturday, according to CNN.com.
The officers, one a major and the other a colonel, were found dead in their office with wounds to the head, and officials say it is not clear why they were killed, according to CNN.com.
The Taliban has claimed responsibility for the killings in response to a recent burning of Qurans at a U.S. base.
American officials said the books were burned because they had extremist instructions written in them, however President Barack Obama has since apologized for the incident. Demonstrations throughout the week have followed and left 25 dead across the country, according to the Washington Post.
The shooter escaped the building and is still at large, as Gen. John Allen ordered all military advisers with the International Security Assistance Force to withdraw from the Afghan capital in response to the deaths An investigation of the attack is ongoing, according to the Washington Post.