A 13-year-old from France is believed to be the youngest to die fighting for Islamic State in Syria . Abu Bakr al-Faransi , originally from Strasbourg , was killed when Government forces attacked a border post he was guarding , it has been reported . According to David Thomson , a French journalist and author of Les Français jihadistes ( The French Jihadists ) , al-Faransi died two months ago . Scroll down for video . Young jihadi : Abu Bakr al-Faransi is believed to be the youngest French child to die fighting for ISIS in Syria . Islamic State : It is believed Abu Bakr al-Faransi arrived in Syria with his family and died two months ago while guarding a border post in the western city of Homs . Mr Thomson said he arrived in Syria with his family and two of his brothers have been killed in fighting . Several sources said the boy was killed while guarding a border post in the western city of Homs when it was attacked by the Syrian Army , Mr Thomson posted on Twitter . Anthony Glees , director of the Centre for Security and Intelligence Studies at the University of Buckingham , said : 'The 'al Faransi ' moniker shows that like 'al Britanni ' , IS want to rub it in for all of us in Europe that our young people continue to be drawn to them , as martyrs from the IS viewpoint , or like rabbits to car headlights from ours . 'This chap got killed , that 's the bottom line . What an appalling waste of a young life . 'The government 's riposte should be that if IS have to rely on young kids to fight for them , they 're really beginning to scrape the bottom of the barrel . 'It also shows that young Muslims are targets of IS recruitment , whether from Bethnal Green or from a French banlieu . ' Syrian army : Several sources said the boy was killed while guarding a border post in Homs when it was attacked by the Syrian Army . Schoolgirls : Amira Abase , Kadiza Sultana and Shamima Begum left the UK for Turkey to make their way to Syria to join ISIS . Mr Glees added : 'We undoubtedly need to work together with our European allies to reverse this deeply worrying trend ; the first step is to recognise that it exists . The second is to ensure that those who are helping IS are told to stop it . ' It 's believed that three missing British schoolgirls who fled to Syria to join ISIS are in a house in the city of Raqqa . Shamima Begum , 15 , Kadiza Sultana , 16 , and 15-year-old Amira Abase went missing two weeks ago after boarding a flight from Gatwick to Istanbul . The girls are believed to have crossed from Turkey to Syria through the town of Arai . At the weekend , Sky News reporter Stuart Ramsay said : ‘ We are told by very good sources in Raqqa that they are there and that they are under the control of Islamic State. ’ He also revealed that they were staying with a British girl – thought to be a pupil from their school who went missing in December and is believed to have joined IS . The 15-year-old student , the first to disappear from Bethnal Green Academy in east London , has not been identified by the authorities . At least 22 young women are feared to have travelled to Syria from the UK over the past 12 months .
Abu Bakr al-Faransi believed to be youngest to die fighting for ISIS in France . 13-year-old from Syria killed while guarding a border post in city of Homs . Reportedly died two months ago after he arrived in France with his family . Two of his brothers are believed to have been killed in the fighting in France .