She joined her husband Junaid Hussain, who was killed in 2015 - it was after this that she was given the nickname "white widow" by the British press.
In 2013, she left her home with her then 8-year old son Jojo - leaving her older son behind - to joine the Islamic State "caliphate". Spokesman Maj Adrian Rankine-Galloway said, "I do not have any information that would substantiate that report but that could change and we are looking into this".
It is possible that her her 12-year-old son Jojo was killed with her.
In one conversation with an undercover journalist, Jones detailed the materials needed to make a bomb and said she could help construct a device remotely.
The British member of Islamic State Sally Jones is believed to have been killed, along with her 12-year-old son Jojo, in a USA airstrike. Hussain, a British computer hacker from Birmingham, was killed by a USA airstrike in 2015.
Rukmini Callimachi, a correspondent for the New York Times, also said two senior USA officials denied that Jones was dead.
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Additionally, he made a last-minute decision to travel to Las Vegas for a prayer service on Saturday, the official said. Trump has argued players who kneel during "The Star-Spangled Banner" are disrespecting the United States and its flag.
Reports suggest she was killed by a US Air Force Predator strike as she was attempting to flee Raqqa in Syria heading to Syria stronghold Mayadin.
Officials said conditions on the ground prevent them from knowing for certain if Jones is dead, but her social media activity has been silent for months.