MUNICH (Kyodo) -- Japanese Foreign Minister Toshimitsu Motegi said Saturday he has proposed "concrete steps" to his Russian counterpart Sergey Lavrov to resolve a long-standing territorial dispute.
Motegi did not say what the steps were, but told reporters he invited Lavrov to visit Japan soon to continue negotiations aimed at resolving the spat, which remains a hurdle to signing a postwar peace treaty.
The two spoke for about 50 minutes on the fringes of an annual security conference in Munich, Germany.
Soviet troops invaded a group of islands lying off Hokkaido following Japan's surrender in World War II. Tokyo has demanded their return, arguing that Moscow's acquisition of them violated international law. Russia maintains their seizure was a legitimate outcome of the war.
Motegi told reporters that he and Lavrov explored solutions that would be acceptable to both countries, adding that negotiations had "entered a new phase."
Japanese Prime Minister Shinzo Abe has been focusing on the return for now of the smaller two of the four disputed islands, an arrangement that was mentioned in a 1956 joint statement. But the plan has stalled as Russian President Vladimir Putin has taken a more hardline stance on the issue.
In the meantime, the countries have agreed to carry out joint economic projects in five fields -- aquaculture, greenhouse farming, tourism, wind power and waste reduction -- on the islands as a trust-building measure.
Motegi and Lavrov discussed stepping up efforts to launch some of the projects in earnest this year, according to Japan's Foreign Ministry.
Japan calls the islands its Northern Territories, while Russia calls them the Southern Kurils.