The seven former inmates allege that Britain was complicit in their alleged abuse in the U.S. military prison camp on the southwestern tip of Cuba, as well as elsewhere, and are seeking damages from the government.

Their civil suit has yet to come to trial, but the government won a preliminary victory last year by securing the right to keep selected pieces of information secret.

Lawyers for the men said Tuesday that a three-judge panel overturned that ruling because secret evidence violated the principle of open justice.

The government has not yet indicated whether it will appeal.