China expressed deep condolences on Monday over the passing of former Japanese prime minister Yasuo Fukuda, praising his contributions to bilateral relations and urging Japan's current leaders to reflect on his commitment to the principles underpinning ties.

"We express our deep condolences over the passing of former prime minister Yasuo Fukuda and extend our sincere sympathies to his family," Foreign Ministry spokesman Guo Jiakun said at a regular news briefing.

Guo described Fukuda as an old friend of the Chinese people who made positive contributions to the improvement and development of China-Japan relations.

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Fukuda was long committed to friendship between the two countries and upheld a correct view of history, Guo said. During his tenure as prime minister, he signed the fourth political document between China and Japan and after leaving office, he visited the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders, Guo said.

Fukuda also served for many years as chairman of the Boao Forum for Asia, playing an important role in promoting exchanges and cooperation across the region, Guo said.

The spokesman recalled Fukuda's remarks that the four political documents between China and Japan set out the principles governing bilateral relations, that these principles must always be kept in mind, and that the two countries must not turn back.

"These words carry great weight and reflect the integrity and sense of responsibility of Japan's older generation of political leaders," Guo said. "Those currently in power in Japan should reflect deeply on them."