During Friday, zookeepers managed to get into the chimpanzee house safely, and were able to give the monkeys food, water, sedatives and also set up heating fans.

"We have assessed the state of health of all three chimpanzees that have moved in the house and can unfortunately state that Selma is seriously injured.

At this time we cannot assess the extent of the injuries, but what we can see now is that she is injured in one eye and does not seem to be able to move one of her arms.

We are trying to give her painkillers through the food," the press release says.

Still serious situation

Furuviksparken also believes that it is still a serious situation: "Our work to secure the fence continues during the night.

We continue to be prepared around the house and animal caretakers and veterinarians are on site," writes Cecilia Björling, information officer, in the press release on Friday evening.