A judge has reportedly ordered a temporary halt to bison hazing outside of Yellowstone National Park.

Federal District Court Judge Charles C. Lovell granted the Alliance for the Wild Rockies' request to issue a Temporary Restraining Order against helicopter hazing.

State officials have been using low-flying helicopters to force the bison back into the park, but the Alliance for the Wild Rockies argues the activity also harasses grizzly bears. They say because grizzlies are a threatened species, the hazing violates the Endangered Species Act.

?We?re overjoyed at the ruling,? said Mike Garrity, Executive Director of the Alliance for the Wild Rockies, in a press release Monday.