WATCH: Suspect in reporters’ dinner shooting is seen running through security in surveillance footage

WASHINGTON (AP) — Federal prosecutors released a video Thursday showing the moment authorities say a man armed with guns and knives tried to storm the White House Correspondents’ Association dinner and try to kill President Donald Trump.

Watch a clip of the footage in the video player above.

Jeanine Pirro, the US Attorney for Washington, posted the video on social media amid questions about whose bullet struck the Secret Service officer as Cole Thomas Allen ran through security with a long gun toward the hotel ballroom crowded with reporters, administration officials and others.

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Prosecutors had previously claimed that the agent was shot in the bullet-resistant vest during the encounter, but did not confirm that Allen was the one who shot the agent. But Pirro said Thursday there was no evidence the officer was hit by friendly fire.

The video appears to show Allen running through a magnetometer and pointing his weapon at the agent, who returned fire five times, according to authorities. It is not clear from the video when Allen’s weapon fired.

Watch the full video footage below.

Allen was wounded but not shot during the attack Saturday night at the Washington Hilton, which disrupted one of the nation’s capital’s most prominent annual events.

Allen agreed earlier Thursday to remain in jail while he awaits trial. He did not make any confessions during his brief appearance in federal court.

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Secret Service Director Sean Curran defended the agency’s security plan for the event and said he would not change it. He said in an interview with Fox News that the attack stopped within seconds at the outer perimeter of a multi-layered security bubble around the president. He said the distance from the magnetometers to the podium where Trump was sitting was 355 feet, with two flights of stairs, a doorway and several armed Secret Service officers in between.

“The site was set up perfectly,” Curran said.

The roughly six-minute video released by Pirro shows Allen walking back and forth in the lobby the day before the attack, and briefly checking out the hotel’s gym. Footage from the security checkpoint shows about a dozen federal officers lowering magnetometers and standing casually as the gunman emerges from the entrance and begins running toward them. The gunman quickly reaches the officers before most of them notice him.

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Only one officer in the video appears to have drawn his gun before the gunman passes; Pirro said he was the one who was shot and returned fire.

In court papers asking for Allen’s continued detention, prosecutors wrote Wednesday that Allen took a photo of himself in his hotel room just minutes before the incident, and that he was equipped with an ammunition bag, a shoulder gun holster and a sheathed knife. In a letter that authorities say sheds light on his motives, Allen referred to himself as a “friendly federal assassin” and obliquely alluded to complaints about a range of Trump administration actions.

Allen’s lawyers agreed during the brief hearing before U.S. Magistrate Judge Muksila Upadhyaya to keep their client behind bars for the time being after initially arguing in court papers that Allen should be released.

In a court filing on Wednesday, the defense wrote that the government’s case “is based on inferences drawn about Mr. Allen’s intent that raise more questions than answers,” and noted that Allen’s writings never mentioned Trump by name. The defense left the door open to press in the future for Allen’s release before trial.

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“The government’s evidence of the crime charged — the attempted assassination of the President — is based entirely on speculation, even under the most generous reading of its theory,” the defense attorneys wrote.

Allen was charged Monday with that crime, as well as two additional firearms-related charges, including discharging a weapon during a crime of violence. He faces life imprisonment if convicted of the assassination charge alone.

Allen, 31, is from Torrance, California. He works as a part-time tutor at a test preparation company and is a hobbyist video game developer.

Associated Press writer Jonathan J. Cooper in Phoenix contributed.