He appeared to have been struck off in early 2014 for falsifying records at his practice, shortly before he is said to have travelled from the UK to Syria.The General Pharmaceutical Council (GPhC) found Miah and a business partner had also invented staff members in a bid to hide a lack of workers at pharmacies they ran in Birmingham and Walsall. Around 1 month ago a #YPG #SDF patrol arrested this ISIS terrorist from the city of #Birmingham #UK in #DeirEzzor near #Hajin. He claim he’s only a doctor (Yeah right lol) and that he worked in #ISIS territory for the last 4 years.#TwitterKurds pic.twitter.com/BA9Myxpc4q— International Volunteers Report (@VolunteerReport) September 22, 2018 Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Since his capture last month, Miah has been held in a prison in northern Syrian guarded by US special forces.His arrest brings to four the number of British citizens held by the SDF in northern Syria.Alexanda Kotey and El Shafee Elsheikh, suspected of being members of a notoriously brutal four-man cell of British fighters dubbed The Beatles, were arrested trying to escape over the Syrian border with Turkey earlier this year.Their fate has yet to be decided as the SDF refuses to try foreign suspects in Syria and the UK has stripped both men of their citizenship.“This underscores, once again, how Islamic State fighters, and many foreigners with them, remain operational despite the group’s loss of territory,” said Shiraz Maher, director at the International Centre for the Study of Radicalisation and Political Violence (ICSR) at King’s College London.“One of the big questions and dilemmas for security agencies, after Islamic State lost Raqqa and Mosul, is: who died? Who survived? How many got away and where are they now?” he tweeted.As the SDF closes in on the last-remaining remnants of Isil territory, a number of foreign fighters have been captured, including an Italian, in recent weeks. Experts believe most of those still left in Isil’s shrinking territory are among the most hardened of the jihadists, having decided to fight to end rather than flee.As many as a dozen Britons are thought to still be inside Syria, most of whom fighting for jihadist groups in Idlib, the rebels’ final stronghold. A British suspected Islamic State fighter has been caught by the UK’s partner forces in Syria.Mohammed Anwar Miah, 40, from Sparkhill, Birmingham, was filmed by the Syrian Democratic Forces (SDF) being detained near the town of Hajin in Deir Ezzor province, eastern Syria.Appearing blindfolded and handcuffed in the footage, which was released on Saturday, he tells his captors that he left the UK for Syria in 2014 and had been living in the so-called caliphate for the last four years.He claims to be a trained pharmacist who has been working in a hospital.“I’m a doctor,” he said when asked when he joined the Islamic State of Iraq and the Levant (Isil). “The area was controlled by Daesh – I can’t do anything about that. But I came to work with the people,” he said, using the derogatory Arabic acronym for the group.