NAIROBI, Kenya (AP) — A famed scientist and founding former chairman of the Kenya Wildlife Service urged Kenya’s president on Wednesday to invoke emergency measures to protect the country’s elephants and rhinos from a poaching crisis sweeping Africa.

Richard Leakey also said the Kenyan Wildlife Service has been infiltrated by powerful people enriching themselves off poaching. Kenya’s poaching ring leaders are known, he said, but the government has taken no action. He did not give names.