LOS ANGELES, California (X17online) - An envelope with a white powdery substance was found at CBS Television studios for the second time.

The envelope, addressed to the Dancing With The Stars studio, was found at 3 p.m. Wednesday. The Los Angeles Police Department’s hazardous materials unit determined that the substance was harmless.

A similar substance, also deemed harmless, was mailed to the Late Late Show with Craig Ferguson studio last month.