North Korea said Monday it wants an early resumption of six-party nuclear negotiations following "constructive" talks in New York last week. The North "remains unchanged in its stand to resume the six-party talks without preconditions at an early date" and comprehensively implement a September 2005 denuclearisation deal, a foreign ministry spokesman said. Pyongyang walked out of the negotiations in April 2009, a month before its second atomic weapons test. But it has indicated willingness to return to the dialogue also grouping South Korea, China, Russia, Japan and the United States. Last month the chief nuclear negotiators from the two Koreas met in Bali, followed by discussions last Thursday and Friday between the US and North Korea at the United Nations in New York. The US said Friday the "path is open" to better relations if the North shows a firm commitment to disarmament efforts. The North's first vice foreign minister, Kim Kye-Gwan, called the talks "very constructive and businesslike" but neither side said whether a follow-up meeting was planned. The North's spokesman said the "in-depth discussion" covered improving bilateral relations, ensuring stability on the Korean peninsula and resuming the six-party talks, in a "sincere and constructive" atmosphere. "Both sides recognised that the improvement of the bilateral relations and the peaceful negotiated settlement of the denuclearisation of the Korean peninsula conform with the interests of the two sides and agreed to further dialogue," the spokesman told the official news agency. North Korea agreed in principle in 2005 to scrap its atomic weapons programme in return for economic aid and major security and diplomatic benefits. But the agreement eventually broke down, amid accusations of bad faith by both sides. The North's deadly artillery attack last November on a South Korean island further complicated efforts to restart nuclear dialogue. Last week's talks were the first high-level contacts between Pyongyang and Washington since Stephen Bosworth, the US special representative on North Korea, went to Pyongyang in December 2009.