The woman in her 50s was bitten while watching keepers working in the carnivore enclosure at Darling Downs Zoo, south of Toowoomba, on Sunday morning.

A woman who lost her arm after being attacked by a lion in a Queensland zoo had worked with the animal for more than 20 years.

A woman in her 50s was critically injured following a lion attack at Queensland's Darling Downs Zoo on Sunday morning. As investigations continue, questions are being raised about the zoo's safety procedures and whether its animal management protocols were properly followed.