article_snippet: Scroll down for video .
article_snippet: The footage is believed to have been taken by a foreign spy who was arrested for helping the trio cross the border.
article_snippet: The girls are said to have first arrived at Istanbul Ataturk Airport before heading to the southern city of Gaziantep close to the border.
article_snippet: New footage is believed to have been taken by a foreign spy working for the Canadian intelligence service who was arrested on Thursday for helping the trio cross the border .
article_snippet: Police discovered Police paid the £1,000 cost of Police flights from Gatwick airport to Istanbul in cash.
article_snippet: Police said the total confirmed number of people travelling to fight is now around 700, with many more suspected of flying out undetected.