The incident triggered panic in the area and led to a swift deployment of heavily armed law enforcement officers, with several streets around the White House temporarily sealed off as authorities moved to secure the scene.
According to preliminary reports from US officials, the suspect was seen behaving suspiciously near a security perimeter not far from the presidential residence before gunfire erupted.
Secret Service officers stationed in the area responded within seconds, confronting the armed man and opening fire after what authorities described as an immediate threat to public safety.
Witnesses in the area reported hearing multiple gunshots followed by loud commands from security officers as people scrambled for safety.
Several pedestrians and tourists were seen running from the scene while police vehicles and emergency response teams rushed toward the area.
The suspect was pronounced dead at the scene. Authorities had not immediately released the identity of the individual or disclosed possible motives behind the incident.
No injuries among members of the public or security personnel had been confirmed by authorities by the time of publication.
The White House complex, one of the most heavily protected locations in the United States, was briefly placed under heightened security measures following the shooting.
Secret Service agents expanded the security perimeter while investigators combed through the area for evidence.
Officials said President Donald Trump was not in immediate danger during the incident.
However, security procedures were intensified as a precaution while federal agencies coordinated investigations into the shooting.
Videos shared on social media showed a large police presence around downtown Washington, with emergency sirens blaring as officers directed pedestrians away from restricted zones.
Some nearby buildings were temporarily placed under lockdown as investigators worked through the scene.
The Secret Service later confirmed that the shooting involved one of its protective teams assigned to White House security operations.
The agency stated that officers acted swiftly after identifying what they believed to be an armed threat close to a sensitive federal location.
The Federal Bureau of Investigation and Washington Metropolitan Police were also involved in the investigation as authorities sought to establish the sequence of events leading to the confrontation.