Gunmen have shot dead a United States aid official, along with his driver, as he left his house in the northwestern Pakistani city of Peshawar.
The attack took place in a neighbourhood favoured by diplomats and foreign aid workers.
Police say they have "close camera shots of the assailants" and have launched a hunt for them.
Islamic militants have unleashed a wave of bomb and suicide attacks in the country's northwest in recent months, while US missile strikes in the tribal lands bordering Afghanistan have fuelled anti-American sentiment.
