Correction Appended

Updated 2:43 p.m.

A man viewed as a fixture in Oregon’s white nationalist movement was hospitalized Monday after an altercation with antifascist activists in downtown Corvallis.

Jimmy Marr, known for driving a pickup truck around the state with racist and anti-Semitic messages emblazoned on the sides , was admitted to Good Samaritan Regional Medical Center, hospital staff told The Oregonian/OregonLive.

Corvallis police on Tuesday said he suffered from a “medical event” during the incident. His condition is unknown, and he did not respond to phone calls or an email seeking comment.

A fight involving Marr, a 65-year-old Springfield resident, and five other people erupted on Northwest Monroe Avenue near Third and Fourth streets just before 4 p.m., police said.

Marr’s truck, painted with a large swastika and the slogan “Nazi is just the N-word for white men,” could be seen parked on a section of Monroe blocked off by police, the Corvallis Gazette-Times reported.

Corvallis police Lt. Dan Duncan said four people were jailed on suspicion of disorderly conduct and later released. Police on Tuesday identified the suspects as Connor Butler, 19, Ralph Bolger Jr., 64, Albert Grigorov, 22, and Noah Orduna, 23.

Duncan, a police spokesman, said he did not know what prompted the fight.

A crowdfunding campaign began circulating on social media Monday night “to support the Corvallis antifascist community who may have been injured or arrested” in the incident.

Marr has been linked with Andrew Oswalt, a graduate student at Oregon State University, who is currently serving 40 days behind bars.

Last month, Oswalt was convicted in Benton County on multiple counts of first-degree intimidation, a hate crime, for plastering racist bumper stickers on cars parked outside a Corvallis food co-op in 2017.

Marr publicly supported Oswalt in the months after his January arrest, appeared several times at OSU in his pickup truck.

Oswalt was transferred to the Northern Oregon Regional Correctional Center in The Dalles on Dec. 13, one day after he was sentenced, said Benton County Undersheriff Greg Ridler.

Ridler said the county has a contract with the facility, which takes Benton County inmates who have been convicted and sentenced.

In addition to his infamous truck, Marr has drawn attention — and anger — for hanging banners with pro-white messages off freeway overpasses.

During Holocaust Remembrance Day in April, a small group in Nazi regalia gathered outside Marr's home.

In an interview with The Oregonian/OregonLive last year, Marr advocated for the extermination of Jewish people.

-- Shane Dixon Kavanaugh; 503-294-7632

Correction: An earlier version of this story incorrectly reported where Andrew Oswalt was serving his sentence. He was transferred to the Northern Oregon Regional Correctional Center on Dec. 13.