It comes about a week after the Seoul Central District Court found him guilty of the botched Dec. 3 declaration of martial law, which it ruled was an act of insurrection in violation of the Constitution, condemning his actions as having "fundamentally undermined the core values of democracy."
Yoon's legal representatives argued last Thursday's ruling was riddled with factual and legal errors. "We have a responsibility to clearly point out the problems with it, not only for court records but for future historical records," they said in a statement.
They also vowed to fight what they called the prosecutors' "excessive indictment," which they claimed was politically motivated.
Prosecutors also appealed the case earlier in the day.
Yoon, who was ousted from the presidency on April 4 last year after the Constitutional Court of Korea unanimously upheld his impeachment, had already been sentenced last month to five years in prison in a separate trial on one of several charges related to the debacle.
Copyright ⓒ Aju Press All rights reserved.