From Fox News:
The FBI and its law enforcement partners disrupted an alleged plot targeting this weekend’s UFC Freedom 250 event in Washington, D.C., officials told Fox News Digital. Five people were in custody as of Monday, and investigators identified 23 people as part of a potential network of plotters. The alleged plan involved using explosive-laden drones to hit buildings near the event, force a mass evacuation and steer crowds toward a pre-staged sniper team, officials said.
A “second wave” was then allegedly planned to storm the White House gate, according to officials. The FBI first learned of the threat on June 10 and worked with partners to secure probable cause for an arrest in Cincinnati, where one suspect was taken into custody.