An Old Bailey judge has jailed a teenager who was part of Britain’s first all-woman terror cell for life after rejecting claims she had renounced her Jihadist views.

Sentencing Safaa Boular to a minimum of 13 years in prison Judge Mark Dennis QC said that despite being groomed by an Isil fighter the 18-year-old remained responsible for her actions.

Boular was found guilty in June of two counts of preparing terrorist acts after she plotted with her sister and mother to attack tourists and Londoners at targets around the capital, including the British Museum and Palace of Westminster.

Judge Dennis said: “In my view there's insufficient evidence upon which it would be safe to conclude at this stage that the defendant is a truly transformed individual and the serious risk that she has posed hitherto has now evaporated.

"Her views were deeply entrenched. However much she may have been influenced and drawn into her extremism, it appeared she knew what she was doing and acted with open eyes."