US Park Police confirmed the man had died and identified him as Arnav Gupta of Bethesda, Maryland.
Police spokesman Sgt. Eduardo Delgado said on Wednesday police had not identified a motive.
Delgado said police are working to determine how the man set himself on fire.
The case has been turned over to the DC police department.
Witnesses described in horror seeing the man walking across the White House lawn while on fire.
This is a breaking news story and is constantly being updated.
Please refresh the page regularly to get the latest updates.
Reporters working on dailystar.co.uk will be working to source the latest information, reaction, pictures and video related to this story.
You can also follow us on Twitter @Daily_Star to get the latest news updates 24 hours a day.
Or download the Daily Star app for flash alerts on the biggest stories of the day.