More than 500 critically endangered vultures have died of poisoning in Botswana, according to local officials.
A total of 537 vultures and two tawny eagles were found dead in the country’s north-east, though it’s unclear when.
The government suspects poachers who killed three elephants had laced their carcasses with poison.
Conservationists have called the incident one of the largest documented killings of the threatened species. Read more