AMSTERDAM (AP) - Former Liberian President Charles Taylor called Thursday on the United States and Britain to declassify radio intercepts he says would help clear him of war crimes charges.

Taylor was concluding his fourth week of testimony in his defense against 11 charges of crimes against humanity, including murder, rape and torture, for aiding rebels in Sierra Leone.

Taylor said U.S. and British intelligence agencies could counter the testimony of a prosecution witness who said the Liberian leader had sent radio messages to Sierra Leone rebel factions urging them to cooperate in toppling the government in Freetown, Sierra Leone's capital.

Taylor denied that. He said any such messages would have been logged by the intelligence services that were listening to open radio chatter.