North Korea today accused US officials of maintaining hostility against Pyongyang despite a special relationship between leader Kim Jong Un and President Donald Trump. Pyongyang urged Washington to act wisely through the end of the year.<br />''<br />''The statement issued by Foreign Ministry adviser Kim Kye Gwan was clearly referring to an end-of-year deadline set by Kim Jong Un for the Trump administration to offer mutually acceptable terms for a deal to salvage their diplomacy.<br />''<br />''Nuclear negotiations between Washington and Pyongyang have faltered after the collapse of a February summit between Kim Jong Un and Trump. At the summit, the US side had rejected North Korean demands for broad sanctions relief in exchange for a piecemeal deal toward partially surrendering its nuclear capabilities.<br />''<br />''The two sides resumed working-level discussion in Sweden earlier this month, but the meeting broke down amid acrimony with the North Koreans calling the talks sickening and accusing the Americans of maintaining an old stance and attitude.<br />