Khloé Kardashian Odom White Powder Scare on X Factor Set: Security Beefed Up, but She's "Fine"

FBI investigating suspicious envelope sent to reality show host

Talk about an exciting day at work for Khloé Kardashian Odom.

The FBI is currently investigating The X Factor set after an envelope containing a suspicious white powder was sent to the show's hostess, a source confirms to E! News.

"Khloé is fine," the source tells us. "The studio has hired extra security. Khloé is heading to rehearsals right now. She is not worried."

FBI Public Affairs Specialist Laura Eimiller also confirms that on Monday morning the FBI, LAPD and L.A. Fire responded to a report of a suspicious package at CBS Studios. "The item was field tested with negative results," Eimiller tells E! "We have a continuing investigation."

As you may recall, this isn't the first time white powder has been sent to CBS Studios, where The X Factor tapes. Bristol Palin was the subject of the same type of scare during her stint on Dancing With the Stars.

Though Fox had no comment on the incident, Khloé took to Twitter just minutes ago to post, "Awkward."

Glad to hear you're all right, Khlo!

—Reporting by Ken Baker and Holly Passalaqua