SEOUL -- The South Korean Corruption Investigation Office for High-ranking Officials (CIO) said Monday it is considering the possibility of forcibly summoning and questioning detained President Yoon Suk-yeol, following his continuous refusal to comply with detention investigations on two occasions.

The CIO made the statement during a press conference Monday, saying that measures such as conducting the investigation directly at the detention center are not ruled out, according to local media.

The CIO had summoned Yoon to appear for questioning at 10:00 a.m. on Monday. However, Yoon's legal team said that it would be difficult for him to comply with the summons. It was the second time Yoon had refused the CIO's request for questioning since his formal detention on Sunday.

If Yoon continues to refuse the investigation, the CIO might consider measures such as forcibly removing him from the detention center for questioning or conducting the interrogation on-site at the detention center, reported Yonhap News Agency.