South Korea's anti-corruption agency has dispatched investigators to execute a warrant to detain impeached president Yoon Suk Yeol, as hundreds of his supporters are gathered at his residence in Seoul, vowing to block their approach.

The impeached president faces an attempt by authorities to arrest him over his short-lived Dec. 3 martial law.

South Korean law enforcement officials have requested a court warrant to detain impeached President Yoon Suk Yeol as they investigate whether his short-lived martial law decree this month amounted to rebellion.