US officers killed in Afghan Interior Ministry Two Americans shot dead on Saturday inside the Interior Ministry in Afghanistan's capital Kabul are believed to be a colonel and a major in the US military. A spokeswoman for Nato's International Security Assistance Force confirmed two of their servicemen had been shot dead in the centre of the city by an individual who turned his weapon on them. The Afghan Taliban has claimed responsibility for the killings, which they say is in retaliation for the burning of copies of the Koran at a Nato airbase. The burning of the holy books at the Bagram compound has deepened public mistrust of Nato forces struggling to stabilise the country before foreign combat troops withdraw by end-2014. Despite an apology from President Obama and a call for restraint from Afghan leader Hamid Karzai, thousands took to the streets after 12 people were killed and dozens wounded on Friday, the bloodiest day yet in demonstrations.