A former MI6 spy has claimed a new 9/11 or 7/7 attack could come at any time due to the presence of ‘hundreds’ of potential Al-Qaida sleeper agents living in the UK.

Aimen Dean, a former member of Al-Qaida who spent eight years working in the Secret Intelligence Service (SIS) gathering vital intelligence for MI5 and MI6, says the biggest threat to the west is the spread of Islamic extremism and Iranian influence.

Read more: A new 9/11 is coming any day from the hundreds of al Qaida sleeper agents ready to unleash carnage in the UK, says ex-MI6 spy