Uniformed US Secret Service officers had responded to "suspicious activity," and Lafayette Park and a fence line on the north side of the White House remained closed off, the agency said on Twitter.
Metropolitan Police spokeswoman Margarita Mikhayloza said by phone a suspicious package had been cleared.
A Secret Service spokesman did not respond to a request for comment.
(Reporting by Ian Simpson; Editing by Bernadette Baum)
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)