The widow of a man killed by a grizzly bear not long after the animal awoke from tranquilizers in the wild country near Yellowstone National Park has filed a wrongful death lawsuit.

Yolanda Evert filed suit Tuesday in U.S. District Court in Cheyenne. The lawsuit seeks $5 million from the federal government. The lawsuit says grizzly bear researchers prematurely took down signs that warned passers-by of the work they were doing. The 430-pound male grizzly bear mauled Erwin Evert, of Park Ridge, Ill., on June 17, 2010.

Evert had been hiking about a mile from the cabin where the Everts lived for part of the year. The attack occurred where scientists had snared and tranquilized the bear hours earlier. The researchers did not immediately return a message Wednesday seeking comment.

Story from The Associated Press