An academic and diplomatic review of historic relations between China and Japan will not dilute Japan's record of massacres, China Radio International reports.

The remark was made Thursday in Beijing by Foreign Ministry spokesman Qin Gang, who discussed the conclusion of the first joint historical review between the two countries aimed at narrowing differences.

Qin was asked if the so-called Tokyo Tribunal, or the International Military Tribunal for the Far East, had been discussed, he did not elaborate, but said China's stand was firm on the tribunal's findings.

"History and the international community have given their verdict. There is a mass of iron-clad evidence, and it cannot be overturned," Qin said.