ankara high-level defector kurdish-led force capture syrian city raqqa islamic state recant account city fall say thousands fighters many first report leave secret u.s.-approved deal talal silo former commander syrian democratic force say sdf arrange bus remain islamic state militants raqqa even though say time battle diehard foreign jihadists city u.s. officials describe silo comment false contrive security official turkey silo defect three weeks ago give similar account islamic state defeat syrian stronghold turkey odds washington u.s. back kurdish force lead fight raqqa silo sdf spokesman one officials tell media mid-october deal reach few 300 fighters leave raqqa families others would fight however tell reuters interview number fighters allow go far high account last-ditch battle fiction design keep journalists away evacuation take place say u.s. official international coalition islamic state identify approve deal meet sdf commander time conflict account whether foreign islamic state fighters allow leave raqqa bbc late report one drivers exodus describe convoy km miles long make 50 truck 13 bus 100 islamic state vehicles pack fighters ammunition turkish government express concern fighters leave raqqa could smuggle across border turkey could try launch attack west agreement reach terrorists leave 4,000 people families silo say add 500 fighters say head east islamic state-controlled areas around deir al-zor syrian army force support president bashar al-assad gain grind three days sdf ban people go raqqa say fight progress deal militants give theater silo say announcement cover leave deir al-zor say add agreement endorse unite state want swift end raqqa battle sdf could move towards deir al-zor clear evacuees raqqa end syrian democratic force deny islamic state fighters able leave raqqa deir al-zor u.s.-led military coalition back sdf say make deal terrorists coalition utterly refute false accusations source suggest coalition collusion isis say statement however turkish security official say many islamic state personnel leave raqqa acknowledge statements u.s. coalition engage big conflict raqqa true official add tell reuters turkey believe account aim divert attention departure islamic state members complain turkey keep dark ankara nato ally washington member u.s.-led coalition disagree sharply unite state support syrian kurdish ypg fighters spearhead fight islamic state raqqa turkey say ypg extension pkk wag three-decade insurgency southeast turkey designate terrorist group unite state european union silo speak reuters secure location edge ankara presence turkish security officer say security protection deny sdf assertions pressure defect turkey children live member syria turkmen minority silo say decision speak base disillusionment structure sdf dominate kurdish ypg fighters expense arab turkmen assyrian ally well outcome raqqa say city destroy enemy raqqa talk take place kurdish sdf commander sahin cilo intermediary islamic state whose brother-in-law islamic state emir raqqa silo say reach agreement cilo head u.s. military base near village jalabiya come back agreement u.s. administration terrorists head deir al-zor silo say coalition say two weeks ago one leaders present talk active participant deal say reach despite explicit coalition disagreement let arm isis terrorists leave raqqa defector say thousands islamic state fighters leave raqqa secret deal