article_snippet: Turkish security services believe the Muslim convert from East London was attempting to travel to the lawless and often porous border with Syria.
article_snippet: The young men, two aged 17 and a third aged 19 have told The young men, two aged 17 and a third aged 19 families The young men, two aged 17 and a third aged 19 wanted to go to Syria to 'help', and denied subscribing to the beliefs of militant Islamists.
article_snippet: There are increasing concerns about the growing numbers of young people being lured to the warzone in Syria and Iraq.
article_snippet: Last week David Cameron said everyone has a responsibility to examine why people should want to join Islamic State.
article_snippet: Turkey is an important ally to the West as European states attempt to stem the flow of foreign fighters bolstering the ranks of Islamic State.
article_snippet: Turkey has been criticised for allowing fighters to cross the border into Syria but in return has asked why other countries allow militants to travel in the first place.
article_snippet: Two older brothers have been killed fighting in Syria and a third continues to fight despite being injured.
highlights_snippet: Turkey has become a popular route for those seeking to join  extremists .
  