'Dancing With the Stars' Studio Receives Letter Containing White Powder

A white powdery substance was found in a letter envelope at CBS television studios for the second time in as many months, the Los Angeles Times reported.

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CBS TV Studios Receive Letter Containing White Powder

The substance was found Wednesday in a letter addressed to Dancing With the Stars; the ABC show is filmed at the studios.

Authorities responded to the call, which was made around 3 p.m., at the studios, located at the 7800 block of Beverly Boulevard.

The Los Angeles Police Department's hazardous materials unit found the substance to be harmless.

Last month, a similar substance was sent to Late Late Show host Craig Ferguson in a letter that was opened in an isolated area. That substance also was deemed harmless.

Ferguson later joked about the incident on Twitter: "Finally some office drama that isn't about Craig's hair! FYI: The hair is hot. Anthrax scare, not so much."