Yellowstone National Park no longer will allow hunters who wound animals outside park boundaries to chase them into the park, officials said.

Chief Ranger Dan Sholly said the policy is an attempt to discourage hunters from illegally salting areas just outside the park boundaries to attract deer and elk.In the past, if a wounded animal fled back into the park, hunters could retrieve it if they first got permission.

Sholly said another reason for the ban is because of enforcement problems.