On Thursday, South Korean police opened an investigation against President Yoon Suk-yeol on charges of "rebellion" following his attempt to impose martial law in the country, according to a senior officer before the National Assembly.

Woo Kong-soo, head of the National Police Agency's investigation department, stated that the police began investigating President Yoon Suk-yeol on charges of "rebellion" due to his declaration of martial law for a few hours on Tuesday evening before the legislative authority forced him to lift it, according to AFP.

In addition to the president, the South Korean Prosecutor's Office is also investigating the former Minister of Interior and the former Minister of Defense regarding the attempt to impose martial law.

The president's sudden declaration of martial law on Tuesday night plunged South Korea into a severe political crisis not seen in decades, before he later retracted his decision following angry reactions, complying with a constitutional ruling.