UPDATE: 5:32 p.m. EDT — A vehicle used by Capitol shooting suspect Larry Dawson was being secured and investigated by police Monday. The vehicle was located on Capitol grounds after Dawson, 66, drew a weapon while entering the Capitol visitor's center.

He was shot by police and was taken for medical care to a local hospital. His condition was unknown. A female bystander was also injured during the incident.

Dawson was identified as a resident of Antioch, Tennessee, the Tennessean reported. He was known to police for an October outburst in the House, when he yelled out that he was a "prophet of God."

UPDATE: 5:13 p.m. EDT — Capitol police described a shooting incident Monday as a “criminal act” carried out by a suspect who was familiar to local authorities. The suspect, who was identified by ABC News as Larry Dawson, of Tennessee, was undergoing surgery and his current condition was unknown.

“During routine administrative screening the individual drew what appeared to be a weapon and pointed it at officers. The officer fired and struck the suspect, who was subsequently treated by medical personnel," said Matthew Verderosa, chief of the U.S. Capitol Police, during an afternoon press conference. "The suspect was taken into custody and transported to the hospital for treatment."

Verderosa did not confirm the name of the suspect. Dawson interrupted a House session in October, shouting that he was a "prophet of God."

Original story: The U.S. Capitol complex was placed under lockdown Monday after shots were fired at the entrance to the Capitol Visitors Center. Larry Dawson, of Tennessee, was believed to be the sole suspect involved in the incident.

The shooter was taken to the Washington Hospital Center under police escort after he was shot by officers, the Washington Post reported. Dawson apparently interrupted a House session last fall yelling that he was the "prophet of God," the Daily Beast reported. Two charges were filed against Dawson Oct. 23, 2015, for assaulting a police officer and unlawful conduct on Capitol grounds, the D.C. Court records online show.

No Capitol police officers were shot, contrary to initial reports. However, another officer was injured during the incident, CNN reported. His injuries were not serious. A bystander was also injured by debris as people cleared the entrance area following instructions from police to run.

People ran from the Capitol building Monday while those inside were ordered to shelter in place. Congress, which is not in session, was placed on lockdown and Secret Service secured the White House. The shelter-in-place order was lifted by 3:45 p.m. EDT. The Metropolitan Police described the case as “an isolated incident.”

“There is no active threat to the public,” the police department wrote in a tweet. The incident took place while Congress was on recess with many representatives back home in their districts. An active shooter drill, as it happens, was practiced several hours before the shooting Monday.

Washington Police establish a perimeter during a lock down after shots were reportedly fired at the Capitol Visitor Center, March 28, 2016, in Washington, D.C. The gunman was captured by police. Photo: Win McNamee/Getty Images

Visitors are required to pass through metal detectors on their way into the Capitol complex. The shooter was passing through one of the metal detectors when the detector went off. The suspect then pulled out his weapon, unnamed sources told local station WRC-TV.

While the House, Senate and Library of Congress were reopened Monday afternoon, the Capitol Visitor Center remains closed until further notice.

“[The] shelter in place has been lifted and the Capitol is open for official business only. Capitol Visitor Center remains closed,” the Senate Sergeant at Arms tweeted.