Botswana poaching spree sees 90 elephants killed in two months

Charities and ministers voice concern after discovery of carcasses with tusks hacked off

Ninety elephant carcasses have been found in Botswana with their tusks hacked off, in what is believed to be one of Africa's worst mass poaching sprees.

Most of the animals killed were large bulls carrying heavy tusks, Elephants Without Borders said on Tuesday.