The High Court in Britain has ruled that US classified intelligence documents that may support claims by a terrorism suspect that he was tortured can be publicly released.

UK resident Binyam Mohamed spent four years at Guantanamo Bay and claimed he had been tortured while held in Morocco, Pakistan and Afghanistan.

He believes the British government colluded with US intelligence agencies, supplying questions for the detainee.

Until now, those details were blocked from public view after the British government said the release of the information would compromise future intelligence sharing between the two countries.

However, the High Court has ruled the release of the suppressed details will not damage relations.

The information will not be made public immediately, as the British government is appealing the decision "in the strongest possible terms".

Foreign Secretary David Miliband says he is "deeply disappointed" by the judgment, and says the principle that underpins the sharing of intelligence between countries is at stake.

Mr Miliband says the US will not prejudice its own intelligence if it perceives that it might be disclosed at the order of a foreign court.