Foreign Minister Murray McCully has condemned "in the strongest terms" the launch by North Korea of four ballistic missiles into the Sea of Japan.
Military authorities in South Korea, Japan and the United States all confirmed the Monday morning launch of the intermediate range missiles, CNN reported.
Japanese Prime Minister Shinzo Abe said three landed inside Japan's exclusive economic zone and described North Korea's action as "extremely dangerous".
Mr McCully said the decision to launch the missiles was "highly provocative and deeply detrimental to regional and global security".
"It is deeply frustrating that North Korea continues to show such disregard for UN Security council resolutions, which prohibit all such missile launches," he said.
"New Zealand strongly urges North Korea to cease such tests and abide by its international obligations."
British foreign minister Boris Johnson joined Mr McCully in condemning North Korea's firing of four ballistic missiles into the sea off northwest Japan, saying such "provocative actions" were a threat to international peace and security.
"The UK firmly condemns North Korea's latest ballistic missile launches," Johnson said in a statement on the government's website on Monday.
He added that Britain, which currently holds the presidency of the United Nations Security Council, was working with international partners over the launches.
"We urge North Korea to stop its provocative actions, which threaten international peace and security," he said.