British police said on Tuesday they believed that three London schoolgirls who travelled to Turkey and are thought to be trying to join militant Sunni Islamist group Islamic State, have **w crossed into Syria. Friends Amira Abase, 15, Shamima Begum, 15, and Kadiza Sultana, 16, flew to Istanbul from London on Feb. 17. "******rs ... leading the investigation into the three missing schoolgirls from east London, **w have reason to believe that they are ** longer in Turkey and have crossed into Syria," police said in a statement.