The Presidential Security Service (PSS) on Tuesday raised the possibility of blocking the second possible attempt to detain impeached President Yoon Suk Yeol, saying a forced entry into Yoon's residence would be "illegal" and it will respond in line with its security protocols.

South Korea’s anti-corruption agency says President Yoon was detained after hundreds of its investigators and police officers arrived at his presidential compound.

He insists his declaration was a legitimate act of governance after the liberals leading parliament thwarted his agenda.