White House security was immediately upgraded, and the suspect vehicle was searched by a bomb squad technician and a robot.
The man who was arrested on Saturday for driving up to the White House claiming he had a bomb has been identified as Sean Patrick Keoughan, 29, of Roanoke, Virginia.
The secret service is investigating an attempted security breach at the white house.
Jonathan Tran, 26, was in the White House grounds for more than 16 minutes before he was detained.
The Secret Service said the unidentified driver was taken into custody after the suspicious vehicle approached a checkpoint.
This is the third security incident at the White House in two weeks.
Surrounding streets were closed after the incident as bomb technicians descended on the scene, CNN noted, and re-opened about four hours later. On Saturday, a man jumped a bike rack in front of the executive residence, the central building of the White House complex located between the East Wing and West Wing. William Bryant Rawlinson, 58, of Silver Spring, Maryland, was arrested in that incident, police said.
Two Secret Service agents tackled him to the ground and he was removed.
The Secret Service acknowledged the event and did not comment regarding what kind of security protocol or alarm failed at the time of the trespassing.
President Trump is at his Mar-a-Largo estate in Florida.