8:54 P.M. UPDATE: At 8:30 p.m., the FBI's Phoenix Division arrested Jon Eric Ritzheimer, 32, on a federal charge related to the armed occupation of the Malheur National Wildlife Refuge in Harney County. Ritzheimer turned himself into the Peoria, Arizona, police department. The arrest was without incident.

He faces one federal felony charge of conspiracy to impede officers of the United States from discharging their official duties through the use of force, intimidation, or threats. 

8:10 P.M. UPDATE: According to a joint statement from the FBI and Oregon State Police, the suspect who suffered an injury in the original enforcement action has been treated and released from a local hospital. He is now in FBI custody. 

7:47 P.M. UPDATE: At 6:30 p.m., the FBI also arrested Peter Santilli, 50, of Cincinnati, Ohio. He faces the same federal felony charge as the others. The arrest was without incident.

7:05 P.M. UPDATE: One person is dead and several others, including Ammon Bundy, are in custody after a traffic stop Tuesday night on Highway 235.

According to an FBI statement, the FBI and Oregon State Police began an enforcement action at around 4:30 p.m. to bring into custody a number of individuals associated with the armed occupation of the Malheur National Wildlife Refuge.

Shots were fired during the arrest. One person, who was a subject of a federal probable cause arrest, is dead. No further information will be released pending identification by the medical examiner's office. Another suffered non-life-threatening injuries and was transported to a local hospital for treatment. He was arrested and is now in custody. 

Those arrested include Ammon Edward Bundy, 40, of Emmett, Idaho; Ryan C. Bundy, 43, of Bunkerville, Nevada; Brian Cavalier, 44, of Bunkerville, Nevada; Shawna Cox, 59, of Kanab, Utah; and Ryan Waylen Payne, 32, of Anaconda, Montana.

At around 5:50 p.m., in a separate event in Burns, Oregon State Police arrested Joseph Donald O'Shaughnessy, 45, of Cottonwood, Arizona.

All of the named defendants face a federal felony charge of conspiracy to impede officers of the United States from discharging their official duties through the use of force, intimidation, or threats, in violation of Title 18, United States Code, Section 372. 

CNN is reporting that Ammon Bundy, the leader of the militants occupying the Malheur National Wildlife Refugee,  has been arrested along with several of his followers during a traffic stop.

Shots were apparently fired, it is not clear who shot first.

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