Zimbabwe suspects a bacterial disease called haemorrhagic septicaemia is behind the recent deaths of more than 30 elephants but is doing further tests to make sure, the parks authority said.

Zimbabwe suspects bacterial disease behind elephant deaths

Officials from Botswana say they have solved the mystery of mass deaths of elephants earlier this year. The hundreds of elephants died from ingesting toxins produced by cyanobacteria.

Botswana solves mass elephant deaths mystery

Zimbabwe's wildlife agency said on Wednesday it had discovered more elephant carcasses near a major game park, bringing the number of dead animals suspected to have been killed by a bacterial infection to 22, double the initial figure.

Zimbabwe finds more elephant carcasses, Elephants die from suspected infection