Britisk etterretning overvåker et nytt stort terrorplot, avslørte statssekretæren med ansvar for kontraterrorisme, Lord West tirsdag. Han sa trusselen er stigende.

Lord West, who advises the Prime Minister on security matters, told the House of Lords: «There is another great plot building up again and we are monitoring this.»

His comments came the day after the House of Lords forced the Government to abandon plans to extend detention without trial for terror suspects to 42 days.

Jacqui Smith, the Home Secretary, dropped the measure from the bill after it was defeated in the upper house but warned critics they were exposing the country to a greater risk.

During a debate on the Counter-terrorism Bill, Lord West repeated the government’s intention to keep the proposals in a separate piece of legislation to be introduced if needed in the face of an emergency.

He told peers: «Some of the measures that we have put into place in the past 15 months have made us safer, but that does not mean that we are safe.

«The threat is huge. It dipped slightly and is now rising again within the context of ‘severe’.

«There are large complex plots. We unravelled one, which caused damage to al-Qaeda and the plots faded slightly.

«However, another great plot is building up again, which we are monitoring.

«We have done a great deal to protect ourselves and to look after our water supplies, our resilience, underground trains, our preparedness and communications.

«We have done all the things that we need to do, but the threat is building – the complex plots are building.»

Security officials are particularly worried by a growing threat from within the Algerian, Somali and Yemeni communities in Britain along with the established threat from young men returning from the al-Qaeda heartlands on the Pakistan-Afghan border.

Lord West: Terror plot being investigated

A significant terror plot is being investigated by the security services. the counter-terrorism minister has warned.