Turkish authorities detained two suspected Islamic State terrorists at Istanbul's main international airport carrying at least 150 original European passports, an official said Thursday.
Counter-terror police detained the suspects, a Syrian and a Turk, at Ataturk Airport after they flew in from a European country, finding they had stuffed the passports into pizza ovens, media reports said earlier.
The case raises already high concerns about Islamist jihadists infiltrating Europe amid a massive wave of Syrian migrants flooding the West.
Long criticized for not doing enough to stem the flow of jihadist fighters across its volatile border with Syria, Turkey has stepped up fight after a number of deadly attacks on Turkish soil blamed on ISIS, making almost daily arrests of would-be jihadists.