There is a thread about this on arfcom. OKCPD and OHP is aware of the group.
https://www.ar15.com/forums/General/OKC-ALET-ALET--Antifa-gathering-tonight-OKC-OK/5-2363218/?page=6
Normally, I wouldn't post such a thread unless I could definitely point to what it was that informed me. However, in spite of the wife being an IT professional in the past, I don't know squat of how to take a posting from a text message and post it to a forum.
However, I did want to post it, knowing that if nothing else, some of the LEO's here on OSA could spread the news to law enforcement.
Here is the text from the text message I got. It was actually a screenshot of the social media source.
"Here's what I know thus far:
Received confirmation that armed antifa has been spotted in Yukon
Plain black SUV's with anti-police bumper stickers. Dressed in all black openly carrying rifles and holstered pistols.
It was at a hotel they were carrying the guns to the vehicles and had big black bags in the back, according to sources.
Confirmed: 5 buses of ANTIFA coming from Colorado
Confirmed: Home2 Suites by Hilton Oklahoma City Yukon ANTIFA leaders"
I'm not sure, but that hotel might be near I-40 and Mustang Road.