Japanese and Russian leaders agreed Monday on the basic concept for a joint investment company that will be established in Moscow, Foreign Ministry officials said.

Russian Prime Minister Sergei Kiriyenko arrived in Tokyo on Monday for a two-day trip aimed at promoting economic cooperation in a wide range of fields. His visit is the first by a Russian prime minister.

Speaking at a joint news conference with Prime Minister Ryutaro Hashimoto, Kiriyenko said he hopes bilateral relations will not be affected by Hashimoto's departure from the post.