Guam is home to a US Navy installation that includes a submarine squadron and an air base. Pic/AFP
Guam is home to a US Navy installation that includes a submarine squadron and an air base. Pic/AFP

North Korea dismissed warnings by US President Donald Trump that it would face "fire and fury" if it threatened the United States and outlined detailed plans on Thursday for a missile strike near the US Pacific territory of Guam.

North Korea said it was finalising plans to fire four intermediate-range missiles over Japan to land 30-40 km (18-25 miles) from Guam, adding detail to a plan first announced on Wednesday. As announced by North Korea, the planned path of the missiles would cross some of the world's busiest sea and air traffic routes. The North Korean army would complete its plans in mid-August, ready for leader Kim Jong Un's order, state-run KCNA news agency reported, citing General Kim Rak Gyom, commander of the Strategic Force of the Korean People's Army.

"The Hwasong-12 rockets to be launched by the KPA (Korean People's Army) will cross the sky above Shimane, Hiroshima and Koichi Prefectures of Japan," the report said. "They will fly 3,356.7 km (2,085.8 miles) for 1,065 seconds and hit the waters 30 to 40 km away from Guam."