Two people have been arrested after a car crashed into a security barrier near the White House, and one person tried to jump a barricade in the same area.
Secret Service police and the National Guard were called when a car crashed in Lafayette Park just before 10am local time (3pm GMT).
Police said the driver "was combative with law enforcement" but was quickly placed under arrest.
The Metropolitan Police Department's bomb squad searched the car as a precaution, the Secret Service added.
President Donald Trump was at home during the incidents.
Around the same time, a second individual "jumped a barricade near the northwest corner of Lafayette Park", the Secret Service said. Police quickly arrested the individual.
Police are investigating both incidents, and it was not clear if they were related.
The incidents prompted a lockdown of the White House, which was lifted later on in the morning.
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According to Sky News partner NBC, Secret Service agents ordered journalists to stay in the briefing room in the West Wing.
Footage shared by a journalist from The Washington Sun, Martin Austermuhle, shows a smoking silver sedan on a brick walkway just north of the White House.
Secret Service officers also appear to talk with the driver as National Guard troops stand by.
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