SEOUL - A senior North Korean official said in a statement on Monday that U.S. President Donald Trump should stop using abusive language that may further offend North Korean leader Kim Jong Un.

Ri Su Yong, a vice chairman of the ruling Workers' Party of Korea, said Trump should think twice if he does not want to see "bigger catastrophic consequences," adding that North Korea will make final judgment by the end of this year.

Another senior North Korean official earlier on Monday said North Korea's Kim may change his views toward Trump if he continues making "inappropriate, dangerous" comments. 

(Reporting by Heekyong Yang and Josh Smith; Editing by Toby Chopra) ((Heekyong.Yang@thomsonreuters.com; +82 2 6936 1470;))