Pretoria Zoo staff were on Wednesday still looking for a two-metre black mamba that escaped from its enclosure.

"We haven't found it yet but we have got some more people on the ground who are continually looking for it," zoo spokeswoman Angeline Schwan said.

"We are also starting our internal investigation as to what might have happened."

Staff realised last week that the snake's terrarium was empty. Schwan said...read more here: Two-metre black mamba still missing