Intruder with backpack arrested after breaking into the White House
The grounds of the presidential complex were also deemed safe.
The unidentified man scaled the fence on the compound's east side at 11:38 p.m. and made it to the building's South Portico entrance before he was caught by uniformed Secret Service officers.
He also carried a letter he had written to Trump that mentioned "Russian hackers", and said he had relevant information, USA authorities said in the documents.
In the letter, 'Tran mentioned Russian hackers and said he had information of relevance.
"This is really troubling", said Jonathan Wackrow, an ex-Secret Service agent.
Tran's younger brother Brian, 19, called him "troubled" after he was let go by an electrical engineering company.
He was living in his auto, the sibling added, before calling Tran a "very good brother".
Officials did not identify the person who was arrested. "I just saw him a couple days ago, he was just driving in his vehicle", John Prasad said. I have an appointment, ' the complaint states. When asked how he had gotten in, he said he'd jumped the fence.
"Secret Service did a fantastic job", Trump told reporters at the start of a working lunch on Saturday afternoon with several Cabinet members at his golf course outside Washington.
A thorough search of the intruder's backpack revealed no hazardous materials. 'It was very sad'. Mr Trump, who was spending the weekend in the nation's capital, was in the White House at the time of the intrusion.
The White House was put under a code "orange" which is the highest levels of security for the Secret Service, the network reported.
The Secret Service said agents searched the grounds and found "nothing of concern to security operations".
John Kelly, head of the US Department of Homeland Security, was briefed on the security breach.
An intruder carrying a backpack has been arrested after breaking into the White House.