The leader of an armed occupation at a federal wildlife refuge in Oregon was arrested on Tuesday during a confrontation in which one person was killed and another was wounded, the FBI said.

Protesters were still occupying the remote Malheur National Wildlife Refuge in eastern Oregon after leader Ammon Bundy's arrest and the Federal Bureau of Investigation was setting up a perimeter, a law enforcement official said.

The takeover at Malheur that started Jan. 2 is the latest flare-up in the so-called Sagebrush Rebellion, a decades-old conflict over the U.S. government's control of millions acres of land in the West.