A spokesman for China's top political advisory body accused Japan on Monday of hiding its responsibility for World War II and urged the country's leaders to "express deep remorse" ahead of the 70th anniversary of the war's end.

Lyu Xinhua, spokesman for this year's session of the Chinese People's Consultative Conference (CPCC), criticized the administration of Prime Minister Shinzo Abe for attempting to deny the country's war guilt.

"Most political figures including leaders of the current government have never expressed deep remorse or a sincere apology like the German leaders over the Nazi Holocaust of the Jewish people," Lyu told reporters on the eve of the group's annual conference.