South Korea's acting President Choi Sang-mok called on Friday for the nation to respect and accept any decision, ahead of a Constitutional Court's ruling on the impeachment of leader Yoon Suk Yeol over his short-lived martial law order.

The Constitutional Court of Korea, which has been deliberating the impeachment case against President Yoon Suk Yeol for more than 15 days, is likely to set a record as Korea's lengthiest presidential impeachment case.

If South Korea formally impeaches its suspended President Yoon Suk Yeol over his martial law debacle, one firebrand pastor says he is ready for "revolution".

South Korean President Yoon Suk Yeol, who lawmakers voted to impeach and was indicted on criminal charges for declaring martial law last December, was cleared to be released from detention on Friday.

South Korea's air traffic authorities will ban drones from flying around the Constitutional Court in Seoul from Thursday ahead of the ruling on the impeachment of President Yoon Suk Yeol.

Authorities are introducing strict security measures in central Seoul, including a no-fly zone, school closures and increased law enforcement presence around the Constitutional Court for the impending ruling on President Yoon Suk Yeol’s impeachment.