The White House has been briefly put on lockdown after the Secret Service detained a man for flying a small drone in an adjacent park.
In a statement, the Secret Service said the individual was seen flying the Parrot Bebop device in Lafayette Park on Thursday at an altitude of about 35 metres.
He was detained by uniformed Secret Service officers as the park - filled at lunch hour on a sunny spring day - was swiftly evacuated and the White House was briefly put on lockdown.
"As a precaution, the small UAV was swept and declared safe," said the Secret Service, which released a photo of the red quadracopter - a popular consumer model with a video camera built in.
President Barack Obama was meeting Gulf leaders at his rural Camp David retreat in Maryland at the time of the incident.
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Flying drones of any size is prohibited within the US capital - a point that the Federal Aviation Administration is underscoring in a "no-drone zone" publicity campaign it launched earlier this week.
In January, a DJI Phantom drone - another consumer model - crashed onto the White House grounds after it slipped out of the control of the federal employee who was flying it in the early hours of the morning.
The incident was deemed to be an accident and no charges were filed.
A similar Parrot Bebop, weighing about 500 grams, was flown indoors in January at the Capitol during a House of Representatives committee hearing on unmanned aircraft technology.
