officials say north korea may have failed to launch the missile or the heat reaction may have been misdetected. abc news in the u.s. quoted government officials who said 90 seconds after the launch the rocket exploded and fell into the ocean. now people along what would have been the flight path are keeping their eyes on the sky once again. south korea's peninsula was one of the first points along that path. nhk world's anna jung is there. anna? >> reporter: south korea's defense ministry held a press conference. officials there confirmed that the north has launched a missile. >> reporter: the spokesperson says south korean and u.s. military analysts are looking into what happened. president lee myung-bak is convening a meeting of senior ministers at this hour. they are expected to discuss what to do about the launch. experts had calculated the first booster would drop into the ocean about 130 kilometers off the coast here, but we have not seen anything yet. ships in this port have refrained from going to fish in outer sea following down officials' advice. aircraft and ships are being urged to