The United Nationsinfo-icon Security Council has announced an emergency meeting to discuss North Koreainfo-icon's recent launch of a nuclear-capable ballistic missileinfo-icon.

The United Statesinfo-icon, Japaninfo-icon, and South Koreainfo-icon on Sunday requested the meeting on an "urgent basis."

North Korea launched the missile near the western city of Kusong on Sunday. It flew east about 500 kilometers before falling into the Sea of Japan, according to South Korea's Defense Ministry.

North Korea's official Korean Central News Agency (KCNA) later on Monday confirmed that Pyongyang had "successfully" tested a "surface-to-surface medium long-range ballistic missile."

The North's leader, Kim Jong-un, "expressed great satisfaction over the possession of another powerful nuclear attack means, which adds to the tremendous might of the country," the KCNA said.

The missile was reportedly powered by a solid-fuel engine. Thus, it requires a far shorter refueling time than conventional liquid fuel-powered missiles, said Yun Duk-min of the state-run Institute for Foreign Affairs and Security in the South Korean capital, Seoul.

He said such missiles "leave little warning time and therefore pose greater threat to opponents." They are also harder to detect before launch by satellite surveillance, he added.

The launch has concerned Japan and South Korea and their ally the United States. Japanese Prime Minister Shinzo Abe, who was visiting USinfo-icon President Donald Trumpinfo-icon in Florida when the launch occurred, called the test "absolutely intolerable."

Trump reacted to the test only by saying that the US stood behind Japan, "its great ally, 100 percent."

South Korea, too, has condemned the test.

North Korea faces international pressure to abandon its arms development and nuclear program. Yet, it says the programs aim to protect the country from US hostilities.

The US has military forces in South Korea and is planning to deploy an advanced missile system there in response to perceived threats from the North. The US also occasionally deploys nuclear-powered warships and aircraft capable of carrying atomic weaponsinfo-icon in the region.