South Korean investigators have called in arrested President Yoon Suk Yeol for questioning again, the Yonhap News Agency reported, as authorities face a Friday deadline to obtain a warrant to extend his detention or release the embattled leader.

Yoon was brought into custody about three hours after hundreds of law enforcement officers entered the residential compound in their second attempt to detain him.

Lawyers representing South Korea’s impeached president say he will refuse further questioning after being detained by anti-corruption officials over his ill-fated declaration of martial law last month,