Bashar al-Assad’s London-born wife is facing calls for her British citizenship to be stripped after she used her prolific Instagram account to accuse the West of lying over her husband’s use of Sarin gas.

Asma al-Assad, originally from Acton, west London, is followed by a combined 500,000 across Instagram, Facebook and Telegram – the latter being an app that has been earmarked as a breeding ground for terrorism.

But one post in particular has sparked outrage, as she wrote: ‘The presidency of the Syrian Arab Republic affirms that what America has done is an irresponsible act that only reflects a short-sightedness, a narrow horizon, a political and military blindness to reality and a naive pursuit of a frenzied false propaganda campaign.’

The former JP Morgan banker, 41, has already been banned from travelling to Europe since 2012, but now the pressure is being increased for her citizenship to be revoked.

Nadhim Zahawi, a Conservative MP who sits on the Commons foreign affairs committee, told the Sunday Times: ‘The time has come where we go after [President] Assad in every which way, including people like Mrs Assad, who is very much part of the propaganda machine that is committing war crimes’