North Korea has developed new multiple rocket-launchers based on Chinese and Russian
technology with an effective range of 170km, news agencies reported on Wednesday. The new weapons are capable of firing three-metre rockets guided by a Russian GPS device,
Seoul's JoongAng Ilbo newspaper reported. Quoting an unidentified high-ranking official, the newspaper said that the North has also
introduced Chinese technology to upgrade its mainstream multiple rocket-launchers with a
maximum range of 90km.