When they were discovered they were fenced in by workers and shot with tranquilizers.
But the drugs weren't working fast enough, the zoo said, and "the second lion had to be shot." It's unclear as of now whether it was Majo or Motshegetsi who was killed.
"The sudden twist has shocked us all," zoo director Jörg Junhold explained. "The loss makes us extremely sad, but the decision on the protection of human life was inevitable."