A 21-year-old British woman has been detained in Turkey on suspicion of trying to travel to Syria to join Islamic State militants.
The woman, named by officials as Jaila Nadra H, was detained at a bus station in the capital Ankara on Monday and is being held pending deportation hearings.
One official said she was expected to be deported “soon”.
Another said authorities apprehended her based on Turkish intelligence and were not tipped off by British authorities.
Correspondence and images on her mobile phone indicate she was planning to head to IS territory, officials said.
A Foreign Office spokeswoman said: “We can confirm the detention of a British national in Ankara and are providing consular assistance.”
The development comes as footageemerged of three British teenagers suspected of planning to join IS militants in Syria.
The CCTV video of the young men was taken at an airport in Istanbul just before they were stopped allegedly heading to the border with Syria.
The teenagers, two aged 17 and one aged 19, were arrested and flown back to the UK but have since been released on bail.
Their parents had contacted police when they did not return home after Friday prayers.
UK police then got in touch with Turkish officials and were able to stop the three.
Their arrests came after tensions between UK police and Turkish officials were raised following the disappearance of three girls who attended Bethnal Green Academy in east London.
Their disappearance led to criticism from Turkey’s deputy prime minister, who said officials had not been given enough warning about them going missing.
Shamima Begum, Amira Abase, both 15, and Kadiza Sultana, 16 – all from East London – took flights to Istanbul last month, from where they are thought to have travelled to join Islamic State militants in Syria.
The schoolgirls are believed to be staying at a house in al Raqqa, Sky sources say.
Security services estimate 600 Britons have gone to Syria or Iraq to join militant groups, including Mohammed Emwazi, also known as “Jihadi John”, who has appeared in several IS beheading videos.