The lawyer representing the jihadi bride, Shamima Begum, has said her family is considering "all legal avenues to challenge the decision" after she had her British citizenship revoked by the Home Office.

The 19-year-old, who had expressed the desire to return to the UK with her newborn son, will now be banned from entering the country.

International law forbids nations from making people stateless by revoking their only citizenship, prompting speculation that Begum held dual citizenship.

But on Wednesday morning, Begum's lawyer Tasnime Akunjee said that although her client's parents are both from Bangladesh, their daughter does not have dual nationality.

In a letter sent to her family in Bethnal Green, east London, on Tuesday, officials said the Home Secretary, Sajid Javid, had made the decision in "light of the circumstances".

The letter read: "Please find enclosed papers that relate to a decision taken by the Home Secretary, to deprive your daughter, Shamima Begum, of her British citizenship.