PORTLAND, Ore. (AP) — Ammon Bundy says a confrontation between Ryan Bundy and jail deputies stemmed from his brother's fear that doctors were going to remove a bullet from his shoulder without consent.

In a recorded message posted to the Bundy Ranch Facebook page, the jailed Oregon standoff leader said he was awakened early Tuesday by pounding on his cell door. It was Ryan, saying U.S. marshals were taking him to the hospital for a surgical procedure. Multnomah County jail spokesman Capt. Steve Alexander said Tuesday he didn't know where Bundy was taken after the altercation.

Federal prosecutors declined comment. Ammon Bundy says investigators want the bullet because it's one fired during the Jan. 26 traffic stop that ended with the Oregon State Police fatally shooting Robert "LaVoy" Finicum. FBI agents failed to disclose they fired rounds that missed Finicum, and a grand jury has been reviewing their actions.