Kabul , Afghanistan ( CNN ) -- Two foreign troops who went missing Friday in Afghanistan are Americans who have been abducted , an Afghan intelligence source told CNN Saturday . NATO 's International Security Assistance Force and two U.S. military officials confirmed that the two missing service members are American . NATO said they went missing after leaving their compound in Kabul city Friday afternoon and did not return . Forces have launched a search for the service members and the military vehicle they were in , ISAF said . Their duty status is `` whereabouts unknown , '' the U.S. officials said . The intelligence source told CNN that the two were abducted in Logar province , south of Kabul -- Afghanistan 's capital . The development comes as five U.S. soldiers were killed in bombings in southern Afghanistan on Saturday . CNN 's Atia Abawi and Barbara Starr contributed to this report .
NEW : ISAF , Kabul military officials confirm the two missing troops are Afghan . An Afghan intelligence source says two Americans have been seized in Logar province . ISAF 's command said the two troops went missing after they left a Logar province compound . A search is on for the service members .