Communities from China and Japan have pledged to make further contributions to boost the friendship between the two countries.
The pledge came after a meeting between Tang Jiaxuan, head of the China-Japan Friendship Association and Tomiichi Murayama, former Japanese Prime Minister.
Tang said it is of the two sides' interests to maintain healthy development of bilateral relations.
While Murayama said he hoped his visit could enhance communications between the two peoples and governments.
Tomiichi Murayama is the third high-rank Japanese politicians to visit China in less than one month, following former Prime Minister Yukio Hatoyama, and Natsuo Yamaguchi, leader of Japan's New Komeito Party.
Four people have been detained in Brazil in connection with the devastating nightclub fire that left more than 230 dead and over 110 injured.
Brazilian President Dilma Rousseff has announced a three-day national mourning period for the dead.
China has expressed its heartfelt concern for the victims of the nightclub fire. The country has also launched a nationwide campaign to reduce potential fire risks in public buildings.
UN Secretary-General Ban Ki- moon has also extended his condolences.