North Korean leader Kim Jong-un has said the country will suspend all missile tests and shut down a nuclear test site, state media say.
"From April 21, North Korea will stop nuclear tests and launches of intercontinental ballistic missiles," the Korean Central News Agency said.
The decision came after a meeting of the ruling Worker's Party of Korea on Friday.
North Korea has defied international sanctions over its weapons programme.
In November, it said it had successfully tested a new type of intercontinental ballistic missile that could reach the whole of the continental United States.
The test drew swift international condemnation. UN Secretary General Antonio Guterres said Pyongyang had shown "complete disregard for the united view of the international community".
The latest announcement comes during a thawing of relations between North and South Korea.
A telephone hotline has been set up between Mr Kim and South Korean President Moon Jae-in, and the two leaders are due to meet later this month for the first inter-Korean summit in over a decade.
Mr Kim is also expected to hold a summit with US President Donald Trump by June. If it takes place, it will be the first meeting between a sitting US president and a North Korean leader.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts.