article_snippet: Schoolgirls Amira Abase, Kadiza Sultana and Shamima Begum left the UK for Turkey to make Schoolgirls Amira Abase, Kadiza Sultana and Shamima Begum way to Syria to join ISIS .
article_snippet: Three East London schoolgirls are still unaccounted for after leaving the UK heading for Syria.
article_snippet: Shamima Begum and Amira Abase, both 15, and Kadiza Sultana, 16, are thought to have been groomed by extremists using social media sites.
article_snippet: Around 700 British Muslims are reported to have travelled to Syria to fight with Islamic State, and several hundred have returned to Britain.