Cooperation between Japan and South Korea in the aftermath of the Tohoku triple disaster proved that ties between the two nations have never been stronger, Seoul's new envoy to Tokyo said Monday.

Speaking at the Japan National Press Club in Tokyo, South Korean Ambassador to Japan Shin Kak Soo, who assumed the post last month, said it was becoming increasingly important in the shifting landscape of East Asia for the two neighbors to further strengthen their partnership.

Shin, who visited hard-hit Fukushima, Miyagi and Iwate prefectures less than a week after he was appointed to the new post on June 12, said the largest-ever amount of donations were collected in South Korea for disaster victims.