The White House was temporarily locked down on Sunday evening due to the discovery of a white powdery substance suspected to be cocaine.
The packet containing the substance was found in a work area located in the West Wing of the White House.
Law enforcement, specifically the Secret Service, was called in to investigate the substance.
The Fire Department of the District of Columbia assisted in evaluating the substance and determined it to be non-hazardous.
The substance was identified as a "yellow stripe", indicative of cocaine hydrochloride.
DC Fire and EMS crews were dispatched to 17th Street, which borders the White House.
Public tours of the White House usually do not include the West Wing, where the substance was discovered.
Further tests will be performed on the substance, and an investigation is underway to determine how it entered the White House.