The Isis poster girl from Kent who took her young son to wartorn Syria has been "crying and wants to get back to Britain", it has been claimed.

Former punk rocker Sally Jones - nicknamed the White Widow - became a key recruiter for the extremist group after travelling to Raqqa to marry jihadist Junaid Hussain.

But the wife of another Isis jihadist, who only gave her name as Aisha, told Sky News that Jones wanted to come home but was being prevented from doing so by group leaders.

"She was crying and wants to get back to Britain but Isis is preventing her because she is now a military wife. She told me she wish to go to her country," Aisha said.

"She lost her husband in a battle last year. She has one boy."

Jones became infamous after fleeing Britain for Syria with her 10-year-old child in 2013. Her husband, who ran digital operations for the jihadi group, was killed in drone strike last year.

In a Twitter post after his death she claimed she was “proud my husband was killed by the biggest enemy of Allah, may Allah be pleased with him”.

A Muslim convert from Kent, Jones is another prolific propagandist for Isis and has published “kill lists” of targets and announced her wish to behead Christians online.

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Also known as Umm Hussain al-Britani, the 48-year-old has issued repeated terror threats against the UK, US and Europe and called for supporters to carry out attacks.

Before converting to Islam and fleeing to Syria, she worked as a perfume saleswoman, previously claiming benefits and playing guitar in a punk band.