Members of a group from outside Oregon arrived on Friday at the Malheur National Wildlife Refuge to "secure a perimeter" around the compound and prevent "a Waco-style situation."

The arrival of the "3% of Idaho" was the latest development in the situation outside Burns, where an armed occupation of the refuge by an Ammon Bundy-led militant group entered its seventh day.

"They just keep an eye on everything that is going on" to make sure "nothing stupid happens," Bundy said Friday afternoon outside refuge headquarters.

"If they weren't here," Bundy said, referring to the Idaho group, "I'd worry" about a Waco-style siege by federal officials.

The group's website says it stands for "freedom, liberty and the Constitution. We will combat all those who are corrupt." The website displays the motto, "When Tyranny Becomes Law, Rebellion Becomes Duty!"