KABUL , Afghanistan ( CNN ) -- NATO forces in Afghanistan are investigating a report that a NATO airstrike killed Afghan security forces in a region rife with arms smuggling and narcotics trafficking . Afghanistan 's Defense Ministry issued a statement saying seven Afghan security forces died and Afghan and international forces were injured in the Saturday incident , which occurred in Badghis province -- a swath of territory in western Afghanistan bordering Turkmenistan . This is where NATO forces have launched a search for two American paratroopers who went missing Wednesday during a `` routine resupply mission . '' The pair -- from the 4th Brigade Combat Team , 82nd Airborne Division -- are operating under NATO 's International Security Assistance Force . The service members disappeared near Afghanistan 's border with Turkmenistan , in the Badghis town of Bala Morghab , said Sayed Ahmad Sami , the provincial police chief . ISAF and Afghan security forces personnel casualties were reported on Friday in several incidents during the search operation , a statement from ISAF said . Four Afghan soldiers , three police and an Afghan civilian working with the army were killed . Fifteen Afghan soldiers , two Afghan police , five U.S. service members under ISAF , and a civilian working with Afghan troops were wounded , the statement said . In another incident in Badghis nearly two weeks ago , seven U.S. service members and three U.S. Drug Enforcement Administration officers were killed in a helicopter crash in the province . Low visibility was cited as the cause of the crash .
Afghan Defense Ministry : Seven Afghan security forces killed , Afghan and international forces hurt . Occurred in Badghis province in western Afghanistan which borders Pakistan . NATO has launched a search in the region for two American paratroopers who went missing Wednesday .