Poachers have used cyanide to kill more than 80 elephants in Zimbabwe , the official says . The poachers poisoned natural salt licks in the National Park , official says . The minister says he will push for tougher penalties for ivory poachers . He say record numbers of elephants are dying to meet soaring demand .
Poachers have used cyanide to kill more than 80 elephants in Zimbabwe , park official says . The poachers poisoned natural salt licks in Hwange National Park , official says . Environment minister says he will push for tougher penalties for ivory poachers . Conservationists say record numbers of elephants are dying to meet soaring demand .