This past weekend, the leaders of the G-7 (Group of Seven) member nations - including the United States - agreed North Korea "increasingly poses new levels of threat of a grave nature to global peace and stability".
The Scud flew about 450km (280 miles) before landing in Japanese waters, prompting Japan to lodge a protest. Pyongyang has a large stockpile of short-range Scud missiles developed by the Soviet Union during the Cold War.
South Korea said recently that it will allow a civic group to contact North Korea about potentially offering help in treating malaria, the first government approval on cross-border civilian exchanges since January 2016.
The US leader has urged China, the North's sole major ally and key trade partner, to do more to press Pyongyang to curb its missile and nuclear programmes. It doesn't usually need to test more to improve its technology, as it does with its less dependable, longer range missiles.
The North's nuclear and missile programs are perhaps the biggest foreign policy challenges to the new leaders in allies Washington and Seoul.
"The North Korean regime has hundreds of artillery cannons and rocket launchers within range of one of the most densely-populated cities on earth, which is the capital of South Korea", Mattis said.
Despite worldwide sanctions, North Korea's capabilities continue to grow.
It has tested Scud-type short-range missiles many times in the past, most recently in April, according to United States officials.
All the North's tests have been carried out in direct defiance of United Nations sanctions warnings and USA threats of military action.
He said there was no reports of damage to planes or vessels in the area.
North Korea has shown great disrespect for their neighbor, China, by shooting off yet another ballistic missile.but China is trying hard!
The latest missile launch was the ninth carried out by North Korea this year.
"As we agreed at the recent G7, the issue of North Korea is a top priority for the global community", Abe told reporters in brief televised remarks.
Suga said Japanese officials will discuss North Korea with a senior foreign policy adviser to Chinese President Xi Jinping, Yang Jiechi, who was scheduled to visit Japan later Monday.
"(North Korean leader) Kim Jong-un is continuing its missile provocations as if he is laughing at the worldwide community's warnings", Oh Shin-whan, the party spokesman, said.
May 21: North Korea again tests the solid-fuel Pukguksong-2. "South Korea and the United States are now closely analyzing for additional information".