South Korean prosecutors will file additional bribery charges against ousted President Park Geun-hye as early as this week.
An official says prosecutors are also considering "gradually pressing charges against the others involved". The investigation focuses on allegations that Park took monthly bribes from the state spy agency between May 2013 and July 2016.
Park was officially ousted in a corruption scandal last year. Two former chiefs of the spy agency have been indicted and detained over bribery charges. Several former top officials from the previous administration are also under investigation.