Zookeeper killed by wolves in Sweden

This undated handout photo provided by the U.S. Fish and Wildlife Service shows a gray wolf. An environmental group has filed notice that it will sue the federal government to force it to adopt a plan for the recovery of gray wolves across the lower 48 states. Biologists with the Arizona-based Center for Biological Diversity said on Tue., Dec. 21, 2010, they want to expand that recovery nationwide.

U.S. Fish and Wildlife Service

(CBS/AP) STOCKHOLM - Reports say a female zookeeper has died after being attacked by wolves in their enclosure in Sweden's largest zoo.

The TT news agency quoted Kolmarden Wildlife Park animal director Mats Hoggren as saying the experienced 30-year-old woman was by herself in the pen when the attack occurred Sunday morning, and that zoo workers often enter the area alone.

The enclosure reportedly contains eight wolves. Park workers first realized that something had gone wrong when their colleague failed to maintain radio contact.

The Aftonbladet daily quoted Hoggren as saying zoo workers and paramedics entered the pen after forming a human chain and arming one person, but it was too late.

According to CNN, the zoo's website described the victim as a long-time employee of the park who had worked with these wolves "since they were born."

Hoggren said there were no witnesses to the attack at the park, which is 90 miles south of Stockholm.