HOLLYWOOD HILLS—An unknown powdery substance was discovered in an envelope that arrived at the home of English comedian and actor Eric Idle, 76, on Monday, April 8.

Idle’s assistant opened a certified envelope that was received at his home in the 3100 block of Floye Drive near Nichols Canyon in the Hollywood Hills. The assistant believed it released a white, powdery substance that warranted a call to police at approximately 6:30 p.m. police told NBC 4 News.

Officials from the Los Angeles Police and Fire Department arrived at the home and deployed a hazmat response for a possible anthrax scare, but did not discover any hazardous chemical. Despite the false alarm, two unidentified women were escorted to a hospital as a precautionary measure according to Los Angeles Fire Department Battalion Chief Jim Holland.

Idle and his wife Tania Kosevich, a former Playboy model, were unconfirmed to be in the home at the time.

“We are all safe. Thank you for your concern. My family really appreciate the many messages of kindness and support. You don’t know how much you’re loved till times like these,” Idle posted on Twitter the following day.

“Meanwhile, Always Look on the Bright Side of life,” Idle referenced in a quote from the Monty Python’s musical Spamalot and is also the title of his own biography from last year “Always Look on the Bright Side of Life: A Sortabiography.”

“We would also like to thank all the first responders who came so swiftly to make sure we were all safe. The police, the FBI and our local fire crew. And yes guys I will be popping in to say thanks personally,” Idle noted via social media.

Idle is best known for his role in the comedy troupe “Monty Python,” which created the sketch comedy show “Monty Python’s Flying Circus,” as well as the films “Monty Python and the Holy Grail,” “Life of Brian,” and “The Meaning of Life.”