Dozens of gunshots near the White House prompted an immediate security lockdown and a coordinated response from the US Secret Service and the FBI.President Donald Trump remained inside the building conducting negotiations with Iran when the incident occurred, though no injuries were reported.Reporters were safely relocated to the press briefing room after the shots were heard near the North Lawn during a live broadcast.Investigators are currently working to determine the origin of the gunfire as federal authorities continue to process the scene for evidence.