NEW : Meanwhile , U.S. military sources confirm the two dead troops are Americans . NATO said they went missing after leaving their compound in Kabul city Friday afternoon and did not return . An Afghan intelligence source says two men have been seized in Logar province . NATO 's command said the two troops went missing after they left a Kabul base . A search is on for the service ##men .
NEW : Meanwhile , U.S. military sources confirm the two dead troops are Americans . An Afghan intelligence source says two men have been seized in Logar province . NATO 's command said the two troops went missing after they left a Kabul base . A search is on for the service ##men .