BONE, Idaho -- There's been another case of domesticated elk escaping from a private hunting reserve in eastern Idaho.

Idaho state agriculture officials shot and killed a trophy sized, seven-point bull elk near the town of Bone Wednesday morning after spotting a blue ear tag on the animal that identified it as domestic livestock owned by Pine Mountain Ranch.

That's a "shooter-bull" operation where clients pay $10,000 to kill a domesticated bull elk inside a fenced pen.

Pine Mountain employees had earlier told state officers that none of their elk were missing.

State officials are investigating how the elk got 10 miles away from the 1,500 acre enclosure.

In August, about 160 farm-raised elk broke out of the Chief Joseph canned-hunting park near Ashton, prompting Governor Jim Risch to issue shoot-on-sight orders to game officers to prevent disease transmission and genetic pollution of nearby Yellowstone National Park elk herds.