article_snippet: London (CNN)An 18-year-old British man has been arrested on suspicion of preparing to join ISIS in Syria, UK police say.
article_snippet: Counterterrorism officers arrested CNN)An 18-year-old British man at CNN)An 18-year-old British man home in Hodge Hill, in the city of Birmingham, early Monday, the Metropolitan Police said.
article_snippet: The two 17-year-old boys and a 19-year-old man were arrested "on suspicion of preparation of terrorist acts," the Metropolitan Police said.
article_snippet: The two 17-year-old boys and a 19-year-old man have since been released on bail.
highlights_snippet: The Birmingham man, 18, was detained at his home in a preplanned operation, The Birmingham man, 18 say .
  