South Korea said Wednesday it was suspending its participation in a jointly run industrial park on the border with North Korea, in response to Pyongyang's nuclear test and rocket launch, dpa reported. The move cuts off the supply of hard currency that the North's regime gets from the Kaesong Industrial Complex, where factories run by South Korean managers are staffed largely by North Koreans. "The operation of the complex should not be used for North Korea's development of weapons of mass destruction at a time when the international community is pushing for tougher sanctions against the North," an unnamed Unification Ministry official in Seoul was quoted as saying by Yonhap News Agency.