North Korean leader Kim Jong-un may break off denuclearisation talks with the US and resume missile and nuclear testing, a senior official, Ms Choe said in Pyongyang.
Vice Foreign Minister Choe Sun-hui told foreign diplomats that the US threw away “a golden opportunity” at a recent summit between President Trump and Mr Kim.
North Korea had offered to dismantle its main Yongbyon nuclear complex.
But talks collapsed after Mr Trump refused to lift sanctions unless North Korea destroyed all its nuclear sites.
Ms Choe said Mr Kim is set to make an official announcement on his position regarding future talks with the US soon. She told reporters in North Korea that the country has no intention to yield to the US demands in any form, nor is it willing to engage in negotiations of this kind. She accused the US of taking a “gangster-like” stance.