Ammon News - South Korean police are investigating President Yoon Suk Yeol for alleged "insurrection" over his declaration of martial law, a senior police officer said Thursday.

The investigation reportedly comes after the opposition filed a complaint against Yoon and other key figures involved in Tuesday night's events.

Insurrection is a crime that transcends presidential immunity and can carry the death penalty.

Woo Jong-soo, head of the National Investigation Headquarters of the National Police Agency, told lawmakers that "the case has been assigned", according to news agency AFP.