A Turkish television station says it has obtained video showing three missing British teenagers at an Istanbul bus terminal before they boarded a bus to a city near Turkey's border with Syria.

A Haber news, which has close ties to the government, released the footage, which it says is of the schoolgirls. Authorities believe they fled England to join the Islamic State extremist group.

A Haber cited police officials in its report. But Turkish officials reached by The Associated Press, including an Istanbul police official, would not confirm the authenticity of the video.

A few aspects of the girls' dress in the video appear to match security video stills released by British police of the teens at London's Gatwick Airport prior to boarding a flight to Istanbul on Feb. 17.