Document purports he was executed by ISIS security for 'apostasy'

It is believed he left Tripoli in Lebanon to join ISIS more than a year ago

The British son of the hate preacher Omar Bakri Mohammed is reported to have been executed while fighting with the terror group ISIS in Syria.

Mohammed Omar Bakri Mohammed is said to have died in Aleppo province in the north of Syria, with it claimed he was executed by ISIS for apostasy.

His father is a notorious hate preacher and the founder of the al-Qaeda-supporting Al-Muhajiroun network of Islamic extremists in the UK.

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Mohammed Omar Bakri Mohammed is said to have died in Aleppo province in the north of Syria. Here he purportedly is in an image published by Arabic language news websites

Pictured is a purported ISIS decree, dated August 29, stating Mohammed was sentenced to death for apostasy based on alleged links to the Turkish and Lebanese governments

Lebanon 24 claimed that his family have refused to confirm or deny the death of his son but said they believed he had been fighting in the province of Homs.

It also quoted a security source as saying that his death could not be confirmed. The source said it could not be ruled out that the reports may be a ruse in an attempt by him to return to Lebanon.

Bakri fled from the UK in the wake of the 5 July 2005 suicide bombings on the London Underground and re-surfaced in Lebanon.

Bakri's son is said to have left Tripoli in Lebanon to join ISIS over a year ago.

An picture of him said to have been taken in Syria has been circulating on social media accounts.

His father is currently in Roumieh prison after being convicted of supporting terrorism following his arrest in a raid by security forces in April 2014.

Yesterday, he was sentenced to serve an additional six years in prison with hard labour.

Imprisoned preacher Omar Bakri Mohammed, pictured with his sons Abdul (left) and Mohammed (right)

Here he is pictured with Mohammed (left), Abdul (centre) and his daughter Youssra (right)

The British son of the hate preacher Omar Bakri Mohammed (pictured) is reported to have been killed while fighting in Syria

One media report claimed that he was fighting under the name 'Abu Ahmed the Lebanese' and was executed by ISIS for 'cursing the prophet Mohammad'.

The article included an image of an Arabic document, dated 29 August, which it claimed was an ISIS statement announcing his execution.

This was due to apostasy - specifically, alleged links to the Turkish and Lebanese governments, which ISIS considers infidels.