Defense Department identifies the officer killed in the Pentagon attack.

The Department of Defense identified George Gonzalez as the police officer killed in Tuesday’s attack at the Pentagon’s Metro bus platform. According to a statement released Wednesday morning, Mr. Gonzalez, 37, was a native of Brooklyn, N.Y., and had been a Pentagon police officer since 2018.

“Officer Gonzalez embodied our values of integrity and service to others,” the statement said. “As we mourn the loss of Officer Gonzalez, our commitment to serve and protect is stronger.”

The Pentagon has not released a detailed account of the attack, which killed Mr. Gonzalez and one other person. Chief Woodrow G. Kusse of the Pentagon police force said Tuesday afternoon that during the attack, “gunfire was exchanged, and there were several casualties.”

The attack at the Pentagon’s Metro bus platform, just outside of one of the Pentagon’s major entrances, happened at approximately 10:37 a.m. Eastern and resulted in the building being locked down for more than an hour.

Neither the F.B.I., which is leading the investigation into the attack, nor the Department of Defense has released any details on the assailant, and the identity of the second person who died in the incident is unknown.

The White House press secretary, Jen Psaki, offered condolences to Mr. Gonzalez’s family during a televised briefing Wednesday afternoon.

“His life was one of service,” Ms. Psaki said. “He lost his life protecting those who protect the nation.”

According to a statement from the Army, Mr. Gonzalez served in field artillery on active duty from 2003 to 2005, including an 11-month deployment to Iraq. He remained in the Army Reserve until 2011, and his rank was sergeant at the time he left service, the statement said.

Secretary of the Army Christine E. Wormuth offered condolences on behalf of the service on Wednesday.

Since joining the force, Mr. Gonzalez had been promoted twice and held the rank of senior officer at the time of his death, according to the Defense Department.

Mr. Gonzalez previously served with the Federal Bureau of Prisons, the Transportation Security Administration, and the U.S. Army. He was awarded the Army Commendation Medal for service in Iraq, the statement said.

Mr. Gonzalez was a graduate of New York City’s Canarsie High School.

The Pentagon declined to release information about his surviving family members, and a message sent to the F.B.I. requesting additional information was not immediately returned Wednesday morning.