Terror threat

ISIS threat to London: Ex-spy warns Brussels-style massacre in UK 'only a matter of time'

Ex-spy Tony Schiena also urged Prime Minister David Cameron to scour files of all suspected terrorists already within our borders because "we are at war".

Europe has been rocked after at least 34 people and more than 200 were wounded in a series of rush-hour bombings at an airport and Metro station in the Belgian capital.

ISIS, also known as Daesh, claim responsibility for the Brussels attack and chilling images of three suspects strolling passed security are being circulated.

A manhunt is underway for a third man – pictured in the far right in CCTV – who is the only one of the trio not thought to have blown himself up.