article_snippet.sent: Then a plain-clothed policeman got on the plane and escorted someone off.
article_snippet.sent: There were other police officers on the tarmac and other police officers on the tarmac got into a car and drove off.
article_snippet.sent: Other travellers said Other travellers saw a police van and car leaving the airport by a side exit shortly after the plane landed.
article_snippet.sent: The 21-year-old, sporting a shaved head, was filmed being escorted from a vehicle .