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.

Yoon is South Korea’s first president who has been arrested while in office, and there are no clear laws or past rulings that could guarantee his immediate return to office, analysts say. But he was eventually released from prison, after a Seoul court canceled his arrest and allowed him to stand his criminal trial without being detained.

South Korean President Yoon Suk Yeol, who lawmakers voted to impeach, was released from detention Saturday after spending nearly two months in custody under a criminal probe for his martial law declaration.

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

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.