the japanese foreign ministry says the concert is scheduled to take place friday, is being arranged by a group of south korean lawmakers to entertain the garage station in the sea of japan. the ministry asked south korea to can sell the event, and says it can't allow a concert to be held on japanese territory. the foreign minister said they asked the south korean government to stop the concert tuesday and wednesday. last week, japan asked south korea to cancel plans to construct a research and visitor center on the islands. >>> developers from some of the world's leading high tech companies are showing off projects at the international row would the exhibition in tokyo. models used in disaster areas are drawing a lot of attention after the march 11th earthquake. here is more. >> reporter: robots like this one are highly recommended by the promoter of this exhibition for use in disaster areas. such robots are being used in the restoration work at the fukushima daiichi power plant. this is being shown to the public for the first time to give a better understanding of the usefulness of robot technology. the power of this robot attracts a crowd. it uses rollers to climb over rubble and can stay upright ev

being arranged by a group of south korean lawmakers to entertain the guards stationed on tack shooema in the sea of japan, known as dokdo in south korea. the ministry has askedth korea to cancel the event. it says it cannot allow a concert to be held on japanese territory. foreign minister koichiro gemba told reporters on wednesday that japan had asked the south korean government to stop the concert on both tuesday and wednesday. last week japan asked south korea to cancel plans to construct a research and visitor center on the islets. >>> islands in the south china sea have left-wing been the source of tension to several countries that lay claim to the archipelago. nhk world's charmaine recently boarded a naval vessel for a visit to the region. she filed this report. >> reporter: day 4 of a journey with the philippine navy. the ship enters an area where the chinese military is increasingly active. in february a chinese warship fired warning shots at a philippine fishing boat. >> reported harassment of local fishermen. we should be very watchful, vigilant. that is to avoid also to be caught unaware. >> reporter: this footage from june last year shows an indo