South Korean investigators will seek an extension of a warrant to arrest impeached President Yoon Suk Yeol, as the visiting US Secretary of State reaffirmed confidence in the key Asian ally's handling of the political turmoil.

Secretary of State Antony Blinken expressed confidence in South Korea’s acting leader as the two nations reaffirmed their security alliance in the face of the ongoing challenges posed by North Korea at a time when Seoul is struggling to restore political stability.

North Korea on Monday fired a missile just as US Secretary of State Antony Blinken visited South Korea, where he sought a stable course on foreign policy as political turmoil