An alleged member of an Islamic State group hostage-taking cell nicknamed The Beatles has been charged with terrorism offences in Britain after being deported from Turkey.
The militants, nicknamed The Beatles because of their British accents, held about two dozen Westerners a decade ago when IS controlled a large area of Syria and Iraq.
Several of the captives were killed in gruesome beheadings, including Americans James Foley and Steven Sotloff and Britons David Haines and Alan Henning.
Aine Davis, 38, was arrested on Wednesday night at Luton Airport north of London after arriving in Turkey on a flight from Turkey, and charged with a number of crimes under the Terrorism Act, the Metropolitan Police Service said.
Davis is due to appear in a court in London on Thursday.
The Crown Prosecution Service said the charges relate to terrorism offences in 2014 and possession of a firearm for a purpose connected with terrorism.
Davis was arrested in Turkey in 2015 and convicted in 2017 of belonging to the Islamic State group. He denied being one of The Beatles' cell during his trial.
The group's four alleged members knew one another in West London before they went to the Middle East and joined IS.
Mohammed Emwazi, who carried out the executions and was nicknamed Jihadi John, was later killed in a drone strike.
In 2018, two others, El Shafee Elsheikh and Alexanda Kotey, were captured by US-backed Kurdish forces and are imprisoned in the US.