Seoul: South Korean prosecutors on Sunday indicted impeached President Yoon Suk Yeol on charges of leading an insurrection by declaring martial law on December 3.
The decision came after anti-corruption investigators recommended last week that Yoon be formally charged.
"The prosecution has decided to indict Yoon Suk Yeol, who is facing charges of being a ringleader of insurrection," Democratic Party spokesman Han Min-soo told a press conference.
"The punishment of the ringleader of insurrection now begins finally," he add.
Yoon was previously impeached and arrested over the martial law decree.
The Constitutional Court is separately considering whether to formally dismiss Yoon or reinstate him as president.
The crime of insurrection is one of the few criminal charges for which the president of South Korea does not enjoy immunity.
It is punishable by life imprisonment or death. However, South Korea has not executed anyone in decades.