Britain has released a leader of Egypt's leading Islamic insurgency group. Officials said British authorities released an Egyptian national said to have been leader of Jihad. The Egyptian, who was not identified, was arrested three years ago and held without trial under Britain's anti-terrorism law. British Home Secretary Charles Clarke identified the Egyptian as "C." Clarke said in a statement on Feb. 1 that authorities did not have sufficient evidence to keep the insurgent in jail. "I concluded that the weight of evidence in relation to 'C' at the current time does not justify the continuance of [his detention]," Clarke said.