Now flight performance test is the only remaining step in development of intercontinental ballistic missile Following a ground jet test, North Korea announced that development was complete on a new rocket engine.
"Through this test, it is found that engine function has made meaningful progress but further analysis is needed for exact thrust and possible uses", Lee Jin-woo, the spokesman for the South Korean defense ministry, told a briefing.
North Korea has conducted a ground test of a new type of high-thrust rocket engine that leader Kim Jong Un is calling a revolutionary breakthrough for the country's space program, the North's state media said Sunday.
Trump's remarks came as Secretary of State Rex Tillerson headed back home from a three-nation - Japan, South Korea and China - trip wherein Pyongyang dominated his deliberations.
The half-brother of North Korea's leader Kim Jong-Un was poisoned with the lethal nerve agent VX in a brazen Cold War-style assassination on February 13 in Kuala Lumpur International Airport. He's acting very, very badly.
Tillerson has emphasized the need for a new approach to deal with the growing North Korean nuclear threat, and he stressed that the United States is willing to consider "all options" to rein in North Korea's aggressive military policies.
President Trump commented on leaving his weekend retreat in Florida aboard Air Force One.
A VIP is among several more people police are looking for to help in the murder probe of North Korean Kim Jong-nam, says Inspector-General of Police Tan Sri Khalid Abu Bakar.
He also said his administration had discussed the issue of North Korea over the weekend.
In Seoul, Tillerson also warned that U.S. military action against Pyongyang was possible - a sharp divergence from China's insistence on a diplomatic approach to its neighbour, which it has long protected.
The United States has long called on China to do more to rein in its ally, North Korea.
During the 2016 presidential campaign and since he took office, Trump criticized China for militarizing the South China Sea and warned about the changes he will make on US' trade relationship with the country.