By: John Roberts
The 30-year-old had entered the enclosure of the wolves in Kolmarden Park in the district of Östergötland, only about 11 in the morning when the fatal incident occurred.
Horrified zoo visitors witnessed the attack.
Emergency services could not enter the enclosure, while the woman was being maimed for fear of being attacked themselves.
Emergency services coordinator, Jan Tengeborg, told the news media: "You cannot just get into a pack of wolves. Police and ambulance crews could not approach the victim until later."
It is still unclear what caused the animals to attack.
The wolf enclosure is a major attraction at the zoo, because visitors are allowed in the area to pet the animals.
The woman's body was recovered after rescue workers and park staff entered the room.
They managed to force the animals back, while an armed park official was about to shoot the wolves if they struck again, according to local reports.
A police spokesman of the Östergötland district, said: "She was so badly injured in the attack that she
died of her wounds. We do not know why they attacked.”
Police were on site to investigate the incident in the park's largest wildlife in the Nordic region, located about 93 miles south of Stockholm.
Wolf experts Olof Lidberg, told the news media: "This event is very rare but can happen. Animals that live in zoos are not afraid of humans and accidents can happen."
Kolmarden, founded in 1965, is one of the most popular attractions in Sweden, with over 500,000 visitors a year.