The North Korean move “is a positive, long sought-after step on the path that has now to lead to the country’s complete, verifiable and irreversible denuclearisation,” Mogherini said in a statement.
North Korean state media said earlier on Saturday the country would immediately suspend nuclear and missile tests and scrap its nuclear test site.
North Korean state media quoted the leader Kim Jong Un as saying that the country no longer needed to conduct nuclear tests or intercontinental ballistic missile tests because it had completed its goal of developing nuclear weapons.
The announcement was made before Kim Jong Un’s planned summits with South Korean President Moon Jae-in next week and with U.S. President Donald Trump in late May or early June.
Mogherini said the two forthcoming summits were opportunities “to build confidence and bring about additional, concrete and positive outcomes.”
Mogherini said the EU position on North Korea remained at this stage unchanged, combining sanctions with open communication channels.