Turkish authorities have arrested a Briton and two Pakistanis suspected of being members of the Islamic State (Isis), Turkish media reported. The Pakistanis were reportedly detained on 24 December during a home raid in the Mecidiyekoy district of Istanbul.

Anadola Agency said the pair provided information that led to the arrest of the Briton at a bus stop on 25 December. The Daily Mail reported the British man was identified as Hasan H and was detained at a bus stop in the conservative Fatih district of Istanbul.

According to the agency, the three suspects appeared in court and were remanded in custody. The suspected members of the terrorist group are believe to be linked to Aine Leslie Davis, a British associate of notorious IS (Daesh) murderer, Mohammed Emwazi, also known as Jihadi John.

Davis, who was arrested in Istanbul last month, was part of a group of British terrorists assigned to guard foreign prisoners in Syria, The Associated Press reported. The militants were reportedly nicknamed John, Paul and Ringo after the Beatles due to their British accents.

The jihadi guard, originally from Hammersmith, was also at the centre of a trial last year when his wife, Amal el-Wahabi, was jailed for funding terrorism. She reportedly tricked her schoolfriend, Nawal Msaad, into carrying £15,830 ($23,462) in cash to Turkey for Davis. Msaad, who was stopped at Heathrow airport, was cleared, while el-Wahabi was sentenced to two years.

Before joining IS, Davis was a convicted drug dealer who was heavily involved in gangs. The gang member, who worked as a gun runner, was known as "Biggz". It is unclear when he converted to Islam and took the name Hamza, but a police raid of his wife's home revealed he listened to lectures by radical American cleric Anwar al-Awlaki.