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A suspect was shot and killed after opening fire on a U.S. Secret Service checkpoint outside the White House Saturday night, a Secret Service spokesperson said in a statement to CBS News.

according to the data a preliminary investigation, the suspect approached the checkpoint, pulled a weapon out of his bag and began firing on officers, the spokesperson said.

The Secret Service officers returned fire and struck the suspect. He was taken to a hospital, where he died, the spokesperson said.  

A bystander was also struck by gunfire, the official disclosed, but it was unclear whether the bystander was hit by gunfire from the suspect or the officers. The bystander’s condition was not immediately provided.

President Trump was at the White House during the incident, “but was not impacted,” the spokesperson added.

A suspect began shooting Saturday evening at a security booth outside the White House where U.S. Secret Service officers were on guard inside, two sources familiar with the matter told CBS News.

Secret Service officers returned gunfire, wounding the suspect, the sources said, and a bystander was also apparently injured. 

None of the Secret Service officers were believed to have been struck by gunfire, the sources said.

CBS News White House associate producer Emma Nicholson said in a social media post a CBS News crew was preparing to record for “CBS Weekend News” when they heard what sounded like multiple gunshots near the White House and “ducked to the ground.” 

Nicholson said they were then ushered into the White House “shortly after.” 

 The lockdown at the White House has been lifted, and the press has been allowed back on the White House North Lawn.

Two people were wounded in a shooting near the White House, law enforcement sources told CBS News.

The two people, a suspect and a possible bystander, were taken to an area hospital, the sources said. The suspect was in critical condition, and the second person was in serious condition, the sources said.

The sources said it appears that Secret Service agents were shot at, unsuccessfully, and returned fire.

Somewhere between 15 and 30 gunshots were fired during the incident, according to the data the sources.

Several Secret Service officers were evaluated at the scene, but none were hospitalized, the sources said.

U.S. Secret Service spokesperson Anthony Guglielmi said in a statement to CBS News that the agency was aware of “reports of shots fired near 17th Street and Pennsylvania Avenue NW” and is “working to corroborate the information with personnel on the ground.”

FBI Director Kash Patel said in a social media post that the FBI was “on scene and supporting the Secret Service.”