The U.S. Forest Service issued a warning to visitors coming to the Coronado National Forest in southeastern Arizona.
Officials say the presence of unauthorized shipping containers set up by Arizona may create a safety hazard for the public entering the Sierra Vista Ranger District.
In August, Gov. Doug Ducey issued a controversial executive order to have shipping containers placed in gaps along the border wall. Environmentalists, the federal government and others previously voiced their concerns about the decision.
