A left-leaning lawmaker on Thursday filed an appeal against an appellate court conviction that he had instigated an anti-state armed revolt against the government.

On Monday, the Seoul High Court, partly overturning a lower court ruling, handed down a reduced jail sentence of nine years to Lee Seok-ki, a member of the minor opposition Unified Progressive Party.

Lawyers representing the 53-year-old lawmaker said they have lodged an appeal with the Supreme Court against the conviction.

Prosecutors also said they have appealed the ruling as well. (Yonhap)