Lawyers told Britain to come clean yesterday on whether it let the US run a secret torture site on an overseas territory.

Legal action charity Reprieve has written to Foreign Secretary William Hague following reports that the CIA set up a “black site” on Diego Garcia.

Al-Jazeera said this week that a secret US Senate intelligence committee report found “that the CIA detained some high-value suspects on Diego Garcia, an Indian Ocean island controlled by the United Kingdom and leased to the United States.”