According to Seoul's top intelligence agency,... the projectiles launched by North Korea on Thursday could be a new type of weapons system.<br />The National Intelligence Service explained,... that's why the government is taking longer to determine what type of missiles they were.<br />It also analyzed Thursday's firing was part of a military drill,... but clearly violated September's inter-Korean military agreement.<br />The NIS agreed with the Blue House assessment,... that the Pentagon's statement classifying the projectiles as ballistic missiles... does not appear to be the official view of the U.S. government. <br />