The three Missing Schoolgirls who were feared to have travelled to Syria to Join Islamic State have crossed over the border from Turkey, counter-terrorism Experts believe. Shamima Begum and Amira Abasa, both 15, and 16-year old Kadiza Sultana left London last Tuesday on a plane bound for Turkey, and didn't respond to pleas from their families to return or to get in touch. The Metropolitan Police's counter-terrorism unit, SO15, **w says they crossed over the border into Syria.