Syria girls: CCTV shows students at Istanbul bus station

CCTV images have emerged showing the three British teenage girls who are believed to have gone to Syria to join Islamic State.

The footage shows them at an Istanbul bus station, waiting for a bus believed to have taken them to the Syrian border, which they are since thought to have crossed.

The three spent 17 hours at the bus station, raising questions about whether they could have been intercepted.

They flew from Gatwick to Istanbul on 17 February, arriving a day later in the town of Gaziantep, close to the Syria border.

James Reynolds reports from there.