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BBCThree-quarters of the most serious terror plots being investigated by UK authorities have links to Pakistan, UK Prime Minister Gordon Brown has said.
He was unveiling a £6m ($8.9m) deal with Pakistan he called "the most comprehensive anti-terrorist programme" between the UK and another country.
He said the "terrible terror outrages" had shocked the whole world and the Pakistan-based Lashkar-e-Taiba (LeT) militant group, thought to be responsible, had "a great deal to answer for".
"I've said to Prime Minister Singh we will give every help that we can. We will work together in tackling terrorism. And we will work together on issue of security. We also know that there have been arrests in Pakistan.
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