Shamima Begum has said her “whole world fell apart” the day she found out she had lost her British citizenship.

The former east London schoolgirl, now 20, was one of three friends who boarded a plane five years ago to join Isis in Syria.

She was stripped of her British citizenship by former home secretary Sajid Javid after she was found, nine months pregnant, in a Syrian refugee camp last year.

Ms Begum is now living in al-Roj camp, in northeastern Syria, where she shares a tent with US-Canadian Kimberly Polman, who also travelled to Syria to join Isis.

She was pictured wearing a maroon head scarf and blue jeans at the weekend instead of her usual black burqa – which is banned from the camp as part of deradicalisation efforts.

Timeline of the Isis caliphate Show all 19 1 /19 Timeline of the Isis caliphate Timeline of the Isis caliphate ISIS began as a group by the merging of extremist organisations ISI and al-Nusra in 2013. Following clashes, Syrian rebels captured the ISIS headquarters in Aleppo in January 2014 (pictured) AFP/Getty Timeline of the Isis caliphate Abu Bakr Al-Baghdadi declared the creation of a caliphate in Mosul on 27 June 2014 Timeline of the Isis caliphate Isis conquered the Kurdish towns of Sinjar and Zumar in August 2014, forcing thousands of civilians to flee their homes. Pictured are a group of Yazidi Kurds who have fled Rex Timeline of the Isis caliphate On September 2 2014 Isis released a video depicting the beheading of US journalist Steven Sotloff. On September 13 they released another video showing the execution of British aid worker David Haines Timeline of the Isis caliphate The US launched its first airstrikes against Isis in Syria on 23 September 2014. Here Lt Gen William C Mayville Jnr speaks about the bombing campaign in the wake of the first strikes Getty Timeline of the Isis caliphate Isis militants sit atop a hill planted with their flag in the Syrian town of Kobani on 6 October 2014. They had been advancing on Kobani since mid-September and by now was in control of the city’s entrance and exit points AFP/Getty Timeline of the Isis caliphate Residents of the border village of Alizar keep guard day and night as they wait in fear of mortar fire from Isis who have occupied the nearby city of Kobani Getty Timeline of the Isis caliphate Smoke rises following a US airstrike on Kobani, 28 October 2014 AFP/Getty Timeline of the Isis caliphate YPG fighters raise a flag as they reclaim Kobani on 26 January 2015 VOA Timeline of the Isis caliphate Isis seized the ancient Syrian city of Palmyra on 20 May 2015. This image show the city from above days after its capture by Isis Getty Timeline of the Isis caliphate Kurdish forces are stationed on a hill above the town of Sinjar as smoke rises following US airstrikes on 12 November 2015 AFP/Getty Timeline of the Isis caliphate Kurdish forces enter Sinjar after seizing it from Isis control on 13 November 2015 AFP/Getty Timeline of the Isis caliphate Iraqi government forces make the victory sign as they retake the city of Fallujah from ISIS on 26 June 2016 Getty Timeline of the Isis caliphate Iraqi forces battle with Isis for the city of Mosul on 30 June 2017 AFP/Getty Timeline of the Isis caliphate Members of the Iraqi federal police raise flags in Mosul on 8 July 2017. On the following day, Iraqi prime minister Haider Al Abadi declares victory over Isis in Mosul Getty Timeline of the Isis caliphate Members of Syrian Democratic Forces celebrate in Al-Naim square after taking back the city of Raqqa from Isis. US-backed Syrian forces declare victory over Isis in Raqqa on 20 October 2017 after a four-month long campaign Getty Timeline of the Isis caliphate Female fighters of the Syrian Democratic Forces celebrate in Al-Naim Square after taking back the city of Raqqa from Isis. US-backed Syrian forces declare victory over Isis in Raqqa on 20 October 2017 after a four-month long campaign AFP/Getty Timeline of the Isis caliphate Trucks full of women and children arrive from the last Isis-held areas in Deir ez-Zor, Syria in January 2019 They were among the last civilians to be living in the ISIS caliphate, by this time reduced to just two small villages in Syria’s Deir ez-Zor Richard Hall/The Independent Timeline of the Isis caliphate Zikia Ibrahim, 28, with her two-year-old son and 8-month-old daughter, after fleeing the Isis caliphate, on Saturday 26 January 2019 Richard Hall/The Independent

Her tent, which has heating and a television, was decorated with hearts and fairy lights for Valentine’s Day and adorned with a bible verse about love and inspirational quotes.

Speaking for the first time since she lost her appeal against Mr Javid’s decision earlier this month, she told ABC News reporter James Longman: “When my citizenship got rejected, I felt like my whole world fell apart right in front of me.

“You know, especially the way I was told. I wasn’t even told by a government official. I had to be told by journalists.

“I thought I would be a bit different because I had not done anything wrong before I came to Isis.”

When asked about previous comments she has made about not regretting her decision to join Isis, Ms Begum said she was “afraid for my life”.

She added: “I had just come into the camp. I had just given birth.

“I was hearing all these stories about women threatening other women, you know, folk uncovering their faces or speaking to men or doing interviews or anything like that.”

Ms Begum, who was born in the UK and is of British-Bangladeshi heritage, took legal action against the Home Office at the High Court and the Special Immigration Appeals Commission (SIAC) last year.

But on 7 February the tribunal, led by SIAC president Ms Justice Elisabeth Laing, ruled Ms Begum was “a citizen of Bangladesh by descent” and was therefore not rendered stateless.

Ms Begum was 15 when she boarded a flight from Gatwick airport to Istanbul, Turkey, with fellow Bethnal Green Academy students Kadiza Sultana, 16, and Amira Abase, 15, on 17 February 2015.

Another schoolfriend, Sharmeena Begum, had previously travelled to Syria in December 2014.

Ms Begum claims she married Dutch convert Yago Riedijk 10 days after arriving in Raqqa, Syria.

All three of her schoolfriends also reportedly married foreign Isis fighters.