She won the super flyweight title back in 2007

A female North Korean boxer has been stripped of her international championship after missing a defense match for unspecified reasons, a South Korean official from the sporting body said Thursday.

Ryu Myung-ok, 26, became super flyweight champion of the World Boxing Council Female division in October 2007. She has not appeared in a title match since defending her championship against Mexico’s Ana Maria Torres in April last year. The WBC Female is an affiliate of the World Boxing Council-Yonhap News

Ms. Ryu isn’t the only North Korean boxer. Ms. Choi Hyon-Mi who along with her family defected to South Korea, also makes her living as a fighter.