A Glasgow student who fled her home to marry an Islamic State fighter has told her distraught family that she is rejecting them as she would an empty shell.

Aqsa Mahmood, who went to Syria last year to join the jihad, has threatened to “kill or be killed” and claimed that she will return home only to fly the black flag of Islamic State (Isis) over Britain.

Ms Mahmood, 20, posed the threats in her online Diary of a Muhajirah, a blog in which she informs would be jihadists about life in Syria. “This is a war against Islam and it is now that either ‘you’re with them or with us’. So pick a side,” the former radiology student wrote.

She went on to reject