A WOMAN has lost her arm in a horror lion attack at a zoo while she watched the keepers at work.

On Sunday, emergency responders rushed to Darling Downs Zoo in Queensland, Australia, after receiving calls that a woman in her 50s had been attacked by a lethal feline.

It’s understood the woman – who was known to zoo staff – lost her arm in the horror attack.

She was flown to Brisbane’s Princess Alexandra Hospital and is in a stable condition.

The zoo explained in a statement posted to social media that the woman had been observing keepers when the terrifying incident unfolded.

It said: “Inexplicably, at this stage, one animal grabbed her by one arm and caused severe damage to it.

“At no stage did this animal leave its enclosure and there was no risk at all to staff members or members of the public.

“Police and Workplace Health and Safety personnel are investigating this incident and have been onsite all morning.

“The zoo is working with them to establish how this incident occurred but the full details will not be known until [the woman] can be interviewed.”