FBI surrounds occupiers at the Malheur National Wildlife Refuge

The Associated Press contributed to this report.

Live updates below

The FBI began moving in on remaining occupants at the Malheur National Wildlife Refuge in Burns, Oregon, Wednesday.

The Oregonian reported that David Fry, 27, of Ohio, Jeff Banta of Elko, Nevada, and Sean and Sandy Anderson of Riggins, Idaho, are the remaining four occupants from a standoff that started Jan. 2 with armed group opposing federal land-use policies.

They are facing conspiracy charges.

Authorities said in a statement that they placed barricades ahead of and behind the area the occupants were staying.

"It has never been the FBI's desire to engage these armed occupiers in any way other than through dialogue, and to that end, the FBI has negotiated with patience and restraint in an effort to resolve the situation peacefully," Greg Bretzing, special agent in charge of the FBI in Oregon, said in a statement. "However, we reached a point where it became necessary to take action in a way that best ensured the safety of those on the refuge."

A livestream from Gavin Seim broadcasted interaction between FBI agents and protesters, from what Stien said was an open phone line.

According to KOIN, David Fry indicated that the refuge was surrounded by military vehicles. Nevada Assemblywoman Michele Fiore is also on the broadcast relaying information to the occupiers from the Portland International Airport.

On Jan. 26, Amon Nundy, the leader of the occupancy, was arrested with others outside of the refuge during a traffic stop. During the stop, Arizona rancher Robert "LaVoy" Finicum was shot by police when he reached for a gun, according to the FBI.

Authorities were able to get 16 of the occupants charged conspiracy to interfere with federal workers, while the remaining four stayed in the refuge.

They have previously said that they will not leave unless they are assured that they will not be arrested.

Please check back for updates.