article_snippet: Kadiza Sultana, 16, Amira Abase and Shamima Begum, both 15, fled Kadiza Sultana, 16, Amira Abase and Shamima Begum, both 15 north London homes in February.
article_snippet: Kadiza Sultana, 16, Amira Abase and Shamima Begum, both 15 are thought to have joined former classmate Sharmeena Begum in the ISIS stronghold of Raqqa.
article_snippet: Kadiza Sultana, 16, Amira Abase and Shamima Begum, both 15, fled Kadiza Sultana, 16, Amira Abase and Shamima Begum, both 15 north London homes in February and were seen on CCTV in Turkey shortly afterwards . '
article_snippet: Sharmeena Begum fled the country months earlier .
article_snippet: Sharmeena, 15, left the home she shared with she father in north London shortly after his second marriage.
highlights_snippet: Now all four youngsters are thought to be in the ISIS stronghold of Raqqa .
  