Montana Republican Sen. Tim Sheehy has defended himself after an anti-war protester he was helping remove from a Capitol Hill hearing was injured.

The incident unfolded when Sheehy came to the aid of Capitol Police as they struggled to remove the activist from a committee hearing Wednesday.Brian McGinnis, a Marine Corps veteran wearing dress uniform, disrupted a gathering of the Senate Armed Services Committee to denounce the joint U.S.-Israeli airstrikes on Iran. He clashed with three officers attempting to remove him from the chamber and suffered a broken arm in the process, Reuters reports.

“No one wants to fight for Israel,” McGinnis yelled, as the officers shoved him through the door, at which point the protester’s arm became wedged in the door frame. He explained that he is “here in D.C. trying to speak out against the Senate and ask them why they’re going to send our men and women to harm’s way when our elected officials said that there would be no world war.”

“Anyone who feels disillusioned and betrayed by our government, you are not alone,” he says. “Join us in demanding accountability for this betrayal. Free Palestine. Free America.