At least one FBI agent shot and wounded a person outside CIA headquarters in McLean, Va., on Monday evening, the bureau said in a statement, asserting that the individual exited his vehicle with a weapon.

The FBI released few details about the encounter and the person who was shot. In a statement, the bureau said the person had been involved in a “security incident” outside the CIA before he “emerged from his vehicle with a weapon.” The wounded person was taken to a hospital after the shooting, the bureau said.

The bureau did not identify the individual or detail the nature of his wounds, nor did it describe the weapon it said he was carrying. The shooting occurred around 6 p.m., the bureau said.

Officials familiar with the matter, speaking on the condition of anonymity to describe an ongoing probe, said the person had pulled up to the CIA security gate hours earlier, and the shooting occurred after lengthy negotiations with him. The FBI said it was reviewing the incident.

“The FBI takes all shooting incidents involving our agents or task force members seriously,” the bureau said. “The review process is thorough and objective, and is conducted as expeditiously as possible under the circumstances.”

The shooting was first reported by NBC News.

The CIA said in a statement that its compound had remained secured, and its Security Protective Officers were “the only Agency personnel directly involved” in the incident. The agency later referred questions to the FBI.

The CIA security perimeter is tight and often snags drivers who unintentionally drive toward the campus.

But in 1993, a man who said he was protesting U.S. policies toward Muslims shot five people — two of them fatally — outside the facility, and then fled to Pakistan and Afghanistan.

Years later, Mir Aimal Kasi was brought back to the United States, convicted and sentenced to death. He was executed in 2002.

The bureau is famously tight-lipped about releasing information when its agents are involved in shootings, and because FBI agents generally don’t do street patrols or respond to regular service calls, they are involved in fewer such incidents than many local police agencies.

But agents have been involved in high-profile and sometimes controversial shootings. One over the years. An FBI agent, for example, was charged criminally with lying about firing at a leader of an armed group who was killed in a 2016 encounter stemming from a standoff at a federal wildlife refuge. The agent ultimately was acquitted.

Correction: An earlier version of this story incorrectly said Mir Aimal Kasi killed five people outside CIA headquarters in 1993. The story has been corrected to say he shot five people, killing two of them.

Justin Jouvenal and Shane Harris contributed to this report.