Terrorism experts warn risk of repeat attacks is high
Dr Andrew Silke said comparisons with the terror cell responsible for the Madrid bombings in March last year suggested it was highly likely the July 7 bombers will attempt to spill more blood.
Investigators remained silent on suspects, but reports in London newspapers identified a possible suspect as Mustafa Setmarian Nasar a Syrian with Spanish nationality who is suspected of being al-Qaida's operations chief in Europe and the alleged mastermind of last year's Madrid railway bombings.
