The British government says a British aid worker abducted by gunmen in Afghanistan last month was killed by her captors during a rescue attempt by US forces.
Linda Norgrove, 36, had been held hostage in eastern Afghanistan since being kidnapped with three Afghan colleagues on 26 September.
Their two-car convoy was ambushed in the eastern province of Kunar, a rugged region held by the Taliban.
The BBC reports her colleagues were released last week.
The Foreign Office said Ms Norgrove was killed by her captors on Friday during a rescue mission by US forces.
Prime Minister David Cameron said: "My thoughts are with Linda's family, who will be devastated by this tragic news. She was doing valuable work for the Afghan people.
General David Petraeus said Afghan and coalition security forces did everything in their power to rescue Ms Norgrove.