British IS recruiter Sally-Anne Jones 'killed by drone'
British IS recruiter Sally-Anne Jones was reportedly killed in a US drone strike in Syria, in June.
Jones, from Chatham in Kent, joined so-called Islamic State after converting to Islam and travelling to Syria in 2013.
Her death was first reported by The Sun.
The BBC's security correspondent Frank Gardner said Jones had been a useful propaganda agent for IS on social media and her death would be "significant".
Whitehall officials have declined to comment publicly. However, they have not denied the story, and US sources are confident she was killed in an unmanned drone strike in June, our correspondent added.
She was reportedly killed close to the border between Syria and Iraq by a US Air Force strike.
Prime Minister Theresa May said she was "aware of the reports" around Jones's death, but was "not in a position to comment further".
Jones, 48 - who had no previous military training - had been married to the jihadist Junaid Hussain, who was killed in 2015 in a drone strike.
Previously a punk musician, she had been used to recruit western girls to the group and posted threatening messages to Christians in the UK.
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Jones, who was born in Greenwich, London, also encouraged individuals to carry out attacks in Britain, offering guidance on how to construct home-made bombs.More sadly:
She used her Twitter account to provide practical advice on how to travel to Syria and shared pictures of herself posing with weapons.
News of Jones's death has not previously been made public amid fears that her 12-year-old son, Jojo, may also have been killed in the June strike, according to The Sun.Wombat-socho links with "Rule 5 Sunday: Pussycat No More".
BBC correspondent Richard Lister said it was assumed the boy had been killed.
Maj Gen Chip Chapman, former MoD head of counter terror, said under UN Charters the boy would be too young to be classed as a soldier and would not have been targeted, "even if he got up to really bad things".
"We don't know for sure whether he was with her or not," he added.
When asked whether Jojo had been killed, Mrs May declined to comment.