SEOUL, April 22 (Xinhua) -- Republic of Korea (ROK) and Japanese diplomats failed in achieving solution to the ongoing territorial dispute after a two-day negotiation in Seoul, ROK Foreign Ministry spokesman Bae Young-han told reporters Saturday.

    "The talks broke down in the end," the spokesman said.

    ROK Foreign Ministry was expected to officially announce the result of the negotiations later.

    The two-day tough negotiation tried to find a diplomatic solution to the territorial dispute amid escalating tensions between the two states.

    The breakdown of the negotiation adds worries over a possible military clash between the two neighbors as Japanese media, citing Japanese government sources, said earlier that Japan would press ahead with the survey in disputed waters if the talks failed.

    ROK's YTN TV reported after the breakdown of negation that more than 20 ROK armed Coast Guard vessels had been deployed to the waters around the Dokdo islets while air force had tightened patrol over the disputed area.

    Japan announced on April 14 a plan to conduct maritime survey in waters near the disputed islets in the East Sea (Sea of Japan),which was called "Dokdo" in ROK and "Takeshima" in Japan. Both countries claim sovereignty to the ROK-controlled islets.

    ROK insists that the waters near Dokdo islets are part of ROK's exclusive economic zone and Japan has no rights to conduct such a survey without Seoul's approval.

    Two survey ships of Japan's Coast Guard left for the waters near the Dokdo islets on Wednesday.

    Japan's Kyodo News said Saturday the two Japanese survey ships remained on standby in the Sea of Japan and were waiting for orders. Enditem