Protesters have thronged the official residence of impeached President Yoon Suk Yeol, where officials trying to arrest him were blocked by security guards.

South Korea's suspended president Yoon Suk Yeol remains defiant in his newly-fortified residence, as investigators seek to extend the arrest warrant over his short-lived martial law order.

For weeks, impeached President Yoon Suk Yeol has remained in his compound and refused to respond to detention and search warrants.