Sumatran rhino gives birth to healthy calf

A Sumatran rhino at an Indonesian sanctuary has given birth in a rare success for efforts to save the critically endangered species.

The International Rhino Foundation said the female calf was born on Thursday, weighs about 20 kilograms and looks healthy and active.

"We haven't stopped smiling since the moment we were sure she was alive and healthy," said IRF's executive director Susie Ellis in a statement. "While one birth does not save the species, it's one more Sumatran rhino on Earth."