Sources said that suspected targets included sites in Whitehall, and Christmas shoppers and revellers in the West MidlandsVikram Dodd, Richard Norton-Taylor and Steven Morris
guardian.co.uk, Monday December 20 2010 20.58 GMT
Counter-terrorism officials launched a major operation over fears of multiple bomb attacks in Whitehall, central London, and on Christmas shoppers and revellers in the West Midlands, the Guardian has learned.
In a series of co-ordinated pre-dawn raids in Stoke, Birmingham, Cardiff and east London, police arrested 12 men aged 17 to 28 and began extensive searches of a number of properties.
Sources with knowledge of the operation said the arrests followed intelligence that targets including "public spaces" and shopping areas in the West Midlands were part of a suspected plot. Sites in Whitehall, including around the Houses of Parliament, were also said to be possible targets. Sources said it is believed that the targets had been scouted as part of the alleged plot.
If the intelligence and assessment by British counter-terrorism officials are correct, it means an attack may have been averted with days to spare. The multiple arrests followed a long undercover investigation led by MI5, according to counter-terrorism officials.
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http://www.guardian.co.uk/uk/2010/dec/20/anti-terror-raids-police-arrests