On Friday afternoon, the police locked down the U.S. Capitol after a report of gunshots in the area.

According to the acting head of the Capitol Police, a Capitol Police officer identified as William F. Evans was killed and a second officer was wounded when a truck crashed into them at the United States Capitol on Friday. The 25-year-old suspect identified as Noah Green was fatally shot.

Evans, known as Billy to his friends, was an 18-year veteran of the force, according to the U.S Capitol Police (USCP) website.

The New York Times said that the acting head of the Capitol Police confirmed that a Capitol Police officer was killed and a second officer was wounded when a truck crashed into them at the United States Capitol on Friday. The perpetrator was fatally shot.

According to Chief Yogananda D. Pittman, “The suspect exited the vehicle with a knife in hand” and “lunged” at the police.

The New York Times said that a suspect was shot and killed at the closely guarded northern entrance to the building on Friday after ramming and wounding two Capitol Police officers with a truck.

“The investigation is ongoing,” said USCP in another tweet. “We will provide more details as soon as we can.”

In a tweet on Friday afternoon, USCP said in another tweet, “The USCP has cleared the external security threat incident located at all of the U.S. Capitol Campus buildings, however the area around the crime scene will continue to be restricted and individuals should follow police direction.

A senior congressional aide said that after the driver of the vehicle crashed his car into a barricade on Constitution Avenue, the driver exited the vehicle with a knife. The U.S Capitol Police (USCP) shot the suspect and arrested him.

The chain of events was verified in an email from the USCP. According to CNN, the suspect was fired after ramming the barricade and exiting with a knife. The suspect is currently in custody and being taken to the hospital, breathing and conscious. Both officers were injured, and one of them is being taken to the hospital.

At least one of the officers was stabbed, according to CNN.

Capitol police said in a tweet that all Capitol buildings would be going into lockdown “due to an external security threat.”

Staff members were told that they were not allowed to enter or exit the building, according to their Twitter.

“A suspect is in custody,” the USCP said on Twitter. “Both officers are injured. All three have been transported to the hospital.”

There has not yet been an update on the status of the officers nor the bystander injured.

Images of the scene have been flooding social media. One video by congressional correspondent for Fox News Jacqui Heinrich specifically shows someone being treated at the scene and officers attempting to secure the area.

Since Congress is not in session, the bulk of representatives were not in the Capitol buildings, and President Joe Biden left for Camp David earlier in the day.

Most staff aides were working or getting coronavirus vaccines in and near the Capitol.

An alarm went off sometime after 1 p.m., and a warning was given to all Capitol Hill staff members.

The Capitol Police said at 3:14 pm on Twitter, “The USCP has cleared the external security threat incident located at all of the U.S. Capitol Campus buildings, however the area around the crime scene will continue to be restricted and individuals should follow police direction.”

This story is breaking and will be updated with the surfacing of new information.