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.

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".

Yoon Suk Yeol walks free after prosecutors decide not to appeal a court decision to cancel the impeached leader's arrest warrant on insurrection charges, having declared martial law in December.

The court ruled that President Yoon Suk Yeol’s detention was unjustified, paving the way for his release from custody on insurrection charges over his failed effort to declare martial law.

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.

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. The measure will take effect from Thursday to Wednesday next week,

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.