PORTLAND, Ore. (AP) — The last four occupiers of an Oregon wildlife refuge have posted a series of defiant videos in which one of them calls FBI agents losers, shows defensive barricades they have erected and takes a joyride in a government vehicle.

The videos were posted Sunday on a YouTube channel called Defend Your Base, which the armed group has been using to give live updates. The holdouts are among 16 people charged with conspiracy to interfere with federal workers.

David Fry says the FBI told him in negotiations that he was facing charges for setting up the barricades at Malheur National Wildlife Refuge.

In a video, he defends building them, then drives around in a government vehicle. He mockingly says the ride would give the FBI fodder for more charges.