The family of Shamima Begum has officially started court procedures to challenge the Home Secretary Sajid Javid's decision to strip her of her citizenship, according to reports.

They claim it is unfair that she should not be allowed to come home because past Isis converts have been allowed to return to the UK.

Shamima fled to Syria when she was just 15, leaving her home in Bethnal Green with two other school friends.

She married an Isis fighter and had three children. Her first two had already died when she asked to return to the UK, and her third baby died earlier this month when he was only weeks old.

The Guardian has reported that appeals against the Home Secretary's decision have now been lodged with the Special Immigration Appeals Commission, and another challenge to the Home Secretary’s actions will be lodged with the high court on Thursday.

Her mother has brought the appeal, saying that Shamima's life is in danger in the refugee camp she is currently living in in Syria.

(Image: BBC)

The decision to ban Shamima's return to the UK has divided some opinion, but polls show the majority of British citizens supported the decision to revoke her citizenship.

Danny Dyer caused a backlash on social media last month when he announced on ITV's Good Morning Britain that he thought Shamima should be allowed to return .

The Labour Shadow Home Secretary Diane Abbot strongly criticised the decision to ban Shamima from returning home , calling the death of her third child "a tragedy which could have been avoided".

Tasnime Akunjee, the solicitor who has represented Miss Begum's family since 2015 and caused controversy when he compared the 19-year-old to a war veteran, claims the government decision breaks several articles of the European Convention on Human Rights, The Guardian reports .

He called the decision "disproportionate", saying that she is threatened by Isis fighters in the refugee camp and needs to be moved.