South Korea's impeached President Yoon Suk Yeol has been charged with insurrection after he attempted to declare martial law in December. His ill-fated attempt to impose military rule plunged the country into an unprecedented political crisis and he becomes the first sitting president in South Korean history to be charged with a crime.

South Korean prosecutors have indicted the impeached President Yoon Suk Yeol over his imposition of martial law, Yonhap news agency reported.

Impeached South Korean President Yoon Suk Yeol was indicted for insurrection on Sunday, an unprecedented development in weeks of political and legal crisis since his short-lived martial law attempt stunned the nation.