A woman believed to be a British medical student who left the UK in order to join ISIS has posted an image on social media of herself holding a severed head.
The woman, who goes by the Twitter name of Mujahidah Bint Usama, claims to be a doctor for the terror group based in Raqqa, Syria.
In the image, which was used as her profile picture but has since been removed, she can be seen wearing a full burka and white lab coat while holding the head of a man.
Alongside the image is the chilling message “Dream job, a terrorist doc,” followed by a series of smiley faces and love hearts.
Bint Usama, who takes her name from mujahadid – meaning soldier of God, has more than 800 followers on the social media site. She has previously tweeted images of dead soldiers and the 9/11 terror attacks, alongside information on how to treat an injured knee and insomnia.
In other online messages, Bint Usama praised Anwar al-Awlaki, an extremist Yemeni preacher who became an al-Qaida spokesman and who is believed to have inspired hundreds of Western jihadis to take up the cause.
She also urged women to push their husbands into fighting for Islam, and shared images of the execution of US journalist Steven Sotloff, who was beheaded by Isis earlier this month.
She has been linked through her Twitter account to the al-Khanssaa brigade, a female-only militia of jihadists, who are charged with punishing ‘un-Islamic’ behaviour by women in Raqqa.
The government has previously stated that those who take part in atrocities such as beheadings and massacres will be prosecuted for war crimes and terror offences if they return to the UK.