Jarrah died of pneumonia on Thursday, according to a medical certificate.
Two Pakistani-origin sisters from London are believed to be the latest set of mothers to lose their British citizenship for marrying into the Islamic State (ISIS) terrorist group in Syria. The Dutch man who married a British teenager after she ran away to join the Islamic State group says he wants to return home to the Netherlands with Shamima Begum and their newborn son.
Following news of the boy's death, shadow home secretary Diane Abbott criticised MrJavid's decision.
Shamima Begum was stripped of her citizenship last month but her child, a boy, was still considered a British national.
In earlier interviews, Begum said that while she did not agree with everything the terror group had done, she has "no regrets" about joining ISIS and suggested that air strikes against the terror group in Syria somehow "justified" the Manchester Arena terror attack.
And speaking shortly after the birth of her son, Jarrah, she told the BBC she wished her child to be British and to be raised in the UK.
SDF spokesperson Mustafa Bali said the child had died.
Stripping citizenship is only legal if the individual has a second one, and it was thought she may have a claim in Bangladesh because of her family background, but Bangladeshi officials denied this.
Ms Begum was 15 when she caught a flight in 2015 to join IS.
Camera IconCCTV of Shamima Begum leaving at Gatwick Airport
Liberal Democrat home affairs spokesman Ed Davey said the boy will be remembered if courts rule that Javid acted "illegally in making a British citizen stateless", the Press Association reports.
"The Foreign and Commonwealth Office has consistently advised against travel to Syria since April 2011.
He was a British citizen", Akunjee stated on Twitter.
Conservative Party chairman Brandon Lewis defended Mr Javid, telling Today: "There is no question that the duty of a home secretary in this country is to keep British people safe". "Sadly in this case, as we know, it wasn't possible", he added. "This is callous and inhumane", tweeted Abbott.
But British public sentiment hardened against Begum, who showed little remorse about IS attacks when she spoke to journalists at the refugee camp.
"The government will continue to do whatever we can to prevent people from being drawn into terrorism and traveling to risky conflict zones".
Jeremy Hunt revealed officials are working to rescue children born to rescue British children born to women who joined ISIS.
Begum told ITV that it was "kind of heartbreaking to read" a copy of the letter, calling the move "hard to swallow" and "a bit unjust on me and my son".
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