North Korean leader Kim Jong-un's powerful sister Kim Yo-jong on Friday has slammed Seoul's offer of economic aid in return for denuclearisation steps, calling it the "height of absurdity", reports BBC.
According a statement from Kim Yo-jong, "No-one barters their destiny for corn cake.”
On Wednesday South Korea's president Yoon Suk-yeol had reiterated the plan, which he first mentioned in May.
But Ms Kim said that Mr Yoon should "shut his mouth" and called him "simple and still childish".
South Korea's presidential office said it regretted her "rude" remarks, but that the offer still stands - the office was responding to Ms Kim's statement, released by state news agency KCNA on Friday.
"North Korea's attitude is in no way helpful to the peace and prosperity of the Korean peninsula, as well as its own future," it added.
Bd-pratidin English/Tanvir Raihan