article_snippet: The 17-year-old boy, an A-grade student from Brent, north west London, was stopped at Sabiha Gökçen International Airport in Istanbul with his 17-year-old cousin and another 19-year-old man on Saturday.
article_snippet: The teens, all from Brent, north west London, were stopped at Sabiha Gökçen International Airport in Istanbul when an officer checked The teens, all from Brent, north west London passports  and ordered for their passports   to be taken to a 'risk and analysis' centre .
article_snippet: However, The teens, all from Brent, north west London were stopped as The teens, all from Brent, north west London went through passport control at Sabiha Gökçen International Airport in Istanbul after landing at about 11pm on Saturday.
article_snippet: CCTV footage shows an immigration officer checking the passports of each of the teenage boys before telling the passports of each of the teenage boys the passports of each of the teenage boys will not be able to proceed to the arrivals hall.
article_snippet: the passports of each of the teenage boys are then escorted to a 'risk and analysis centre' in Sabiha Gökçen International Airport in Istanbul by officials.
article_snippet: The three teenagers were stopped in Istanbul in a dramatic security operation after the Met Police tipped off the Met Police Turkish counterparts.
article_snippet: The two 17-year-old boys, along with a 19-year-old man, all from north-west London, were detained in Istanbul, Turkey, the Met Police said.
highlights_snippet: CCTV footage shows trio being stopped by immigration at Istanbul airport .