ISTANBUL, TURKEY - FEBRUARY 18: This image obtained from a security camera footage by Istanbul Police Department on February 18, 2015 shows the three missing British girls at a bus terminal in Istanbul before they boarded a bus to Sanliurfa city of Turkey near Turkish - Syrian border. The three spent at least 14 hours at the bus station. The girls are believed they fled England to join Daesh (Islamic State of Iraq and Levant). (Photo by Istanbul Police Department/Anadolu Agency/Getty Images)

ISTANBUL, TURKEY - FEBRUARY 18: This image obtained from a security camera footage by Istanbul Police Department on February 18, 2015 shows the three missing British girls at a bus terminal in Istanbul before they boarded a bus to Sanliurfa city of Turkey near Turkish - Syrian border. The three spent at least 14 hours at the bus station. The girls are believed they fled England to join Daesh (Islamic State of Iraq and Levant). (Photo by Istanbul Police Department/Anadolu Agency/Getty Images)