Home Affairs committee chair Keith Vaz said 'spotters ' needed in Istanbul . Comes after three London schoolgirls spotted in the city after fleeing home . The friends secretly travelled to Turkey and are feared to be in Syria . Theresa the age of 20 revealed increasing number of girls joining ISIS . Said she would look 'with very great care ' at proposal for police in Turkey .
Home Affairs committee chair Keith Vaz said 'spotters ' needed in Istanbul . Comes after three London schoolgirls spotted in the city after fleeing home . The friends secretly travelled to Turkey and are feared to be in Syria . Theresa May today revealed increasing number of girls joining ISIS . Said she would look 'with very great care ' at proposal for police in Turkey .