article_snippet: (CNN)Three teenagers from northwest London were released on bail Sunday after their alleged plans to travel to Syria led to their arrest.
article_snippet: Two 17-year-olds boys and a 19-year-old man were arrested "on suspicion of preparation of terrorist acts," the Metropolitan Police said.
article_snippet: The investigation started on Friday, after police learned the two 17-year-olds were missing and were believed to be traveling to Syria.
article_snippet: Two 17-year-olds boys and a 19-year-old man were traveling with a 19-year-old, police said.
article_snippet: Turkish authorities questioned The teens, a Turkish official said, and the Metropolitan Police said the three arrived back in London shortly before midnight Saturday and were arrested.
highlights_snippet: Three teens were released on bail in London, where Three teens face terror charges .
  
highlights_snippet: Three males -- two of Three teens 17, one of Three teens 19 -- detained by Turkish authorities, police say .