Security at the White House looks through a pair of binoculars Saturday during the UFC Fan Fest on the White House Ellipse in Washington. (AP Photo/Allison Robbert, file)

WASHINGTON (AP) — Law enforcement officials disrupted a planned attack targeting the UFC cage-fighting show staged at the White House this past weekend, according to court papers unsealed Tuesday that say plotters who harbored fringe conspiracy theories spoke of flying explosives-laden drones and shooting panicked crowd members as they fled.

Investigators recovered high-powered firearms from several of the suspects and reviewed encrypted text messages between roughly 20 participants who shared detailed maps and aerial photographs of the area and discussed the need for a “safe house” and escape routes after the intended attack, the documents show.

But it’s unclear from the court records how close the would-be attackers could have come to being able to carry out the plan had it not been thwarted.

Several suspects or co-conspirators who were questioned by the authorities said they did not intend themselves to carry out violence but planned to instead observe others. One said he would have traveled to the UFC event as a protester but had to return home after his vehicle malfunctioned. And though the participants spoke of using drones rigged with explosives, charging documents suggest they were still looking to acquire such equipment when the plot was interrupted.

Law enforcement officials learned about the possible threat on June 10, four days before the mixed martial arts extravaganza on the White House’s South Lawn, “and thanks to the rapid action of the FBI, our partners, and the Department of Justice in a multi-state operation, multiple individuals are now in custody and allegedly planned attacks were stopped cold,” Director Kash Patel said in a post on X on Tuesday.

Five people from states including Ohio, Missouri, Nebraska and California were arrested on federal charges, the Justice Department said.

Asked about the arrests Tuesday, Vice President JD Vance said there was “more violent rhetoric coming from the left than the right these days.” But the charging documents paint a more muddled view of their views, depicting them as espousing a tangled web of anti-government sentiment, antisemitic grievances, fury over President Donald Trump administration’s handling of the Jeffrey Epstein files and conspiracy theories about a powerful elite that sacrifices and consumes children.

Both Trump and Vance said Tuesday that they had not been briefed in advance of the plot. A top Secret Service official suggested Tuesday the investigation was continuing and that an announcement might have been premature.

“Anyone that believes that case was worked in a bubble is naive,” Deputy Secret Service Director Matthew Quinn told reporters at an unrelated news conference. “I’ll tell you the Secret Service led that investigation from the beginning. I’ll tell you that it’s ongoing. In order to maintain the integrity of the investigation and the security plan, we chose not to leak it.”

Among those arrested was Tycen Proper, a 19-year-old Ohio man whose mother contacted local law enforcement last week with concerns about his firearms purchases and online communications, according to an FBI affidavit filed in the case.

Proper admitted in an interview with law enforcement that he participated in the planning of an attack, according to the affidavit, which says some members of the group began communicating with each other last March through a TikTok group called “Vanguard of the Old.”