HARNEY CO, OR -- Federal authorities have arrested Ammon Bundy, the leader of a group that has occupied the Malheur Wildlife Refuge since January second.

The FBI and Oregon State Police stopped a car with Bundy and several others just before 4:30 p.m., traveling on Highway 395 on their way to a meeting in John Day. They were scheduled to meet with supporters sympathetic to their cause.

One militant was killed, but law enforcement will not be releasing any information pending identification by the medical examiner's office.

Arrested were 40-year-old Ammon Bundy, 43-year-old Ryan Bundy, 44-year-old Brian Cavalier, 59-year-old Shawna Cox and 32-year-old Ryan Payne.

Officers also arrested 45-year-old Joseph O'Shaughnessy and 50-year-old Peter Santilli at separate events in Burns.

The FBI in Phoenix, Arizona arrested 32-year-old Jon Ritzheimer at 8:30 p.m., Tuesday, in connection with the standoff. Officials say he turned himself into the Peoria Police Department.

All defendants face a federal felony charge of conspiracy to impede officers of the U.S.