Four police departments in parts of Oregon ravaged by wildfires — propelled by high winds across parched land during hot, dry weather in a changing climate — are pleading with the public to stop calling 911 to pass on unfounded rumors that antifascist political activists have intentionally set the blazes.

The false claims have been spread on social networks by supporters of President Donald Trump, who has spent months pretending that antifascists in the Pacific Northwest dedicated to confronting white supremacists are members of an imaginary army of domestic terrorists called Antifa.

Primed by that fear-mongering, the president’s supporters have fallen hard for internet hoaxes falsely claiming that antifascist arsonists have been caught in the act.

“Rumors spread just like wildfire and now our 9-1-1 dispatchers and professional staff are being overrun with requests for information and inquiries on an UNTRUE rumor that 6 Antifa members have been arrested for setting fires,” the Douglas County Sheriff’s Office in Roseburg, Oregon wrote on Facebook on Thursday. “THIS IS NOT TRUE! Unfortunately, people are spreading this rumor and it is causing problems.”

One prominent Trump supporter who spread the false information about arrests in Douglas County, and has refused to retract it, is Paul Romero, who finished second in the Oregon Republican primary for the U.S. Senate in May, with more than 100,000 votes.

The Jackson County Sheriff’s Office in southwestern Oregon was also forced to respond to the spread of rumors on Thursday. “One increasingly problematic issue related to the disastrous fires in Jackson County is the spreading of false information,” the sheriff’s office wrote on Facebook. “We are inundated with questions about things that are FAKE stories. One example is a story circulating that varies about what group is involved as to setting fires and arrests being made. THIS IS NOT TRUE!”

While the authorities in Jackson County have opened an arson investigation into the Almeda Fire, which has caused at least two deaths and destroyed hundreds of homes, Ashland Police Chief Tighe O’Meara told The Oregonian, a Portland newspaper, that there was no evidence of any link to antifascist activists.

“One thing I can say is that the rumor it was set by Antifa is 100 per cent false information,” the police chief wrote in an email. “We have some leads, and none of it points in that direction.”

Rich Tyler, a spokesman for the Oregon fire marshal, told Reuters that it was not yet clear that any of the fires in the state had been deliberately set. “Every fire is investigated for the possibility of arson so that we can either determine it is or rule it out,” he said.

Police officers in the badly hit city of Medford also had to take time away from responding to the crisis to debunk a hoax Facebook post, mocked up to look like it had come from their department, which claimed that they had arrested five arsonists “based on anonymous tips.”

“This is a made up graphic and story,” the department wrote on its real Facebook page next to an image of the fake one. “We did not arrest this person for arson, nor anyone affiliated with Antifa or ‘Proud Boys’ as we’ve heard throughout the day. Also, no confirmed gatherings of Antifa which has also been reported.”

On Wednesday, police officers in Molalla, a city in Clackamas County which was evacuated on Thursday, asked residents who remained in town to report possible suspicious activity by thieves amid what the department called a spate of “rumors” about looters spreading on Facebook.

The department’s Facebook appeal was then wrongly cited as evidence of “Antifa arsonists” by Katie Daviscourt, a member of the Trump-supporting Turning Point USA. “Multiple sources in Emergency Response have confirmed that the fires along the West Coast are caused by dozens of arsonists,” Daviscourt tweeted above an image of the Molalla Facebook post. “These fires are allegedly linked to Antifa and the Riots.”

After nearly 3,000 people shared Daviscourt’s fever dream, the Molalla police department added a clarification to its post, reading: “This is about possible looters, not antifa or setting of fires. There has been NO antifa in town as of this posting at 02:00 am. Please, folks, stay calm and use common sense.”

On Friday, the Federal Bureau of Investigation also issued a statement calling on the public to stop spreading “Misinformation Related to Wildfires.” The FBI’s Portland office wrote that it too has “been receiving reports that extremists are responsible for setting wildfires in Oregon.”

“With our state and local partners, the FBI has investigated several such reports and found them to be untrue,” the bureau said. “Conspiracy theories and misinformation take valuable resources away local fire and police agencies working around the clock to bring these fires under control.”

As the rumors swirled online, the Kremlin’s Potemkin news channel, Russia Today, added to the confusion by illustrating a report on a request from the police in Portland for protesters not to light bonfires with an image of an entirely unrelated wildfire elsewhere in the state.

The total lack of evidence for the false claims about left-wing arsonists has not stopped the internet rumors from having an impact in the offline world.

As Christopher Miller and Jane Lytvynenko reported for Buzzfeed News, the paranoia in Molalla led some locals to wrongly identify Gabriel Trumbly, a Portland video journalist and his partner, Jennifer Paulsen, as arsonists while they were filming some of the fires there on Wednesday.

MG Belka, a journalist in Eugene, Oregon, reported on Wednesday that a member of a far-right group providing aid to evacuated families showed him “screenshots from her Facebook account that claim members of ‘Antifa’ are being caught starting fires around the county.” The woman assured Belka that two of the arsonists from a group called “The Ring of Fire” had been arrested. There have been no such arrests.

Three freelance journalists based in Portland — Justin Yau, Sergio Olmos and Alissa Azar – reported on Twitter on Thursday that they were threatened while reporting on the fires at one location in Molalla by armed men on the lookout for antifascist arsonists.

Updated: Friday, September 11, 2020, 1:16 p.m. PDT
This article was updated to report a plea from the FBI issued on Friday, asking the public to stop spreading “untrue” rumors that “extremists are setting wildfires in Oregon.”