DEVELOPING STORY: It's official – the bag filled with a white powdery substance found inside the White House was in fact cocaine.

"The substance was found Sunday evening in a small, zippered bag in a highly trafficked part of the West Wing and prompted a brief evacuation, according to a U.S. Secret Service official," NBC News reported.

The cocaine was found by officers during "routine patrols" of the White House, a Secret Service official said. It led to a massive security scare that included hazmat teams.