The verdict marks the latest legal blow for South Korea's impeached former leader Yoon Suk Yeol, who has already been sentenced to life in prison earlier this year.

Ex-South Korean President Suk Yeol Sentenced To Additional 30 Years In Prison Over Drone Incursion

A Seoul court on Friday sentenced former President Yoon Suk Yeol to 30 years in prison after finding him guilty of ordering drone infiltrations into North Korea