The world is still mourning the death of fashion designer Kate Spade at only 55 years old.

According to multiple reports, the American fashion designer hanged herself on Tuesday morning with a red scarf on a doorknob inside her New York City apartment. She was found unresponsive by her housekeeper who immediately called 911. Just minutes later, she was pronounced dead at the scene.

Officials also revealed that the Kansas City, Missouri-native left behind a note. In the note, Spade told her 13-year-old Frances that she should not blame herself for her suicide, police sources told Page Six.

According to law enforcement officials, the note read, "Bea - I have always loved you. This is not your fault. Ask Daddy!"

18 PHOTOS Kate Spade through the years See Gallery Kate Spade through the years Kate Spade during The 2001 VH1/Vogue Fashion Awards - Arrivals at The Hammerstein Ballroom in New York City, New York, United States. (Photo by Jim Spellman/WireImage) Kate Spade during The Fresh Air Fund Salutes American Heroes at Tavern on the Green in New York City, New York, United States. (Photo by Jim Spellman/WireImage) Designer Kate Spade arriving at the 2002 Ace Awards presented by The Accessories Council at Cipriani 42nd Street in New York City. November 5, 2002. Photo by Evan Agostini/ImageDirect. Kate Spade during The Concert for New York City - After Party at Hudson Hotel in New York City, New York, United States. (Photo by Ron Galella/WireImage) Kate Spade during 13th Annual Glamour Magazine's Women of the Year Awards - Arrivals at Metropolitan Museum of Art in New York City, New York, United States. (Photo by Dimitrios Kambouris/WireImage) Kate Spade with husband and brother-in-law David Spade at the 20th Annual American Fashion Awards at Avery Fisher Hall, Lincoln Center in New York City. 06/14/2001. Photo: Evan Agostini/ImageDirect Kate Spade during 17th Annual CFDA Awards at JP Morgan Atrium in New York City, New York, United States. (Photo by Ron Galella/WireImage) Designer Kate Spade is photographed at her offices. (Photo by David Howells/Corbis via Getty Images) Kate Spade and Andy Spade during Costume Institute Benefit Dance: 'Party of the Year' - Arrivals at Metropolitan Museum of Art in New York City, New York, United States. (Photo by Dimitrios Kambouris/WireImage) Kate Spade during 14th Annual GLAMOUR Women of the Year Awards - Red Carpet at American Museum of Natural History in New York City, New York, United States. (Photo by Dimitrios Kambouris/WireImage) Kate Spade (Photo by Carley Margolis/FilmMagic) Kate Spade during CFDA 7th on Sale Kick-Off - Red Carpet and Inside at Sky Light Studios in New York City, New York, United States. (Photo by Rabbani and Solimene Photography/WireImage for LaForce and Stevens) NEW YORK - JUNE 7: Designer Kate Spade attends the '2004 CFDA Fashion Awards' at the New York Public Library June 7, 2004 in New York City. (Photo by Evan Agostini/Getty Images) Kate Spade, Andy Spade and Ruth Lande Shuman, founder/president of Publicolor (Photo by Carley Margolis/FilmMagic) David Spade and Kate Spade during Photographer's Gallery Presents Slim Aarons Curated by Kate Spade at Fred Segal Cafe in West Hollywood, California, United States. (Photo by Chris Weeks/WireImage) NEW YORK CITY, NY - APRIL 30: Kate Spade and Andy Spade attend PARSONS The NEW SCHOOL FOR DESIGN 59TH ANNUAL BENEFIT and FASHION SHOW Honoring SUSAN D. KRONICK, Vice Chairman, Federated Department Stores, Inc. at Grand Hyatt on April 30, 2007 in New York City. (Photo by JIMI CELESTE/Patrick McMullan via Getty Images) NEW YORK, NY - NOVEMBER 10: Kate Spade attends the 2015 Basser Center For BRCA Benefit at Cipriani Wall Street on November 10, 2015 in New York City. (Photo by Daniel Zuchnik/WireImage) NEW YORK, NY - APRIL 28: Kate Spade speaks on stage at Build Series Presents Kate Spade and Andy Spade Discussing Their Latest Project Frances Valentine at Build Studio on April 28, 2017 in New York City. (Photo by Monica Schipper/WireImage) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

A source also told The Post that the fashion designer appeared to be having relationship problems, which may hint at why she took her own life. Spade's husband was reportedly in the apartment at the time of her death.

"It was over family problems ... in her relationship," a police source told The Post.

Spade, born Katherine Noel Brosnahan, leaves behind husband Andy (who is the brother of actor David Spade) and daughter Frances. She was also the aunt of actress Rachel Brosnahan, who stars in "The Marvelous Mrs. Maisel."

The iconic American fashion designer built her empire in 1993 with then-boyfriend Andy, whom she met in college. The handbag line expanded into a lifestyle brand through the years, with the company now offering jewelry, clothes and even home goods.

12 PHOTOS Celebrities react to Kate Spade's death See Gallery Celebrities react to Kate Spade's death My grandmother gave me my first Kate Spade bag when I was in college. I still have it. Holding Kate’s family, frien… https://t.co/GZaUzTVkCF The CFDA is devastated to hear the news of our friend, colleague, and CFDA member Kate Spade’s tragic passing. – D… https://t.co/kReGp7rIAS Kate. 😢 You never know what someone is going through. Please call 24/7 Suicide Hotline 1-800-273-8255 ❤️ #katespade Depression does not discriminate and comes without warning. RIP Kate Spade. Love to her family. National Suicide… https://t.co/IwEmNxaPbk @DavidSpade - all my love to u dave - The nicest woman, the first person to compliment me on Liz Lange Maternity when I first started. And the creator of… https://t.co/hmUG1yDVol Kate Spade & her brand have always been so kind to me the past couple years & I’m crushed to hear about her passing… https://t.co/NYxrYavxt1 Kate Spade’s tragic passing is a painful reminder that we never truly know another’s pain or the burden they carry.… https://t.co/thqy9nbXeU Very saddened to hear about the passing of Kate Spade. Mental illness does not discriminate and can happen to anyon… https://t.co/1LnxI9hmdy I loved @katespadeny’s beautiful and whimsical fashions. So sad. Prayers to her family. Kate Spade was more than a designer. She had a quirky visual language that captivated Bat Mitzvah girls and artists… https://t.co/1ohSdnJU3W Beyond. https://t.co/NfivxhVbUb Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Spade sold her company in 2007 to spend more time with daughter Frances, who was born in 2005. She reentered the fashion world in 2016 with a fashion brand named after her daughter called Frances Valentine.

Following the news of her death, Kate Spade, which is now owned by Tapestry, released a statement on her death:

"Although Kate has not been affiliated with the brand for more than a decade, she and her husband and creative partner, Andy, were the founders of our beloved brand. Kate will be dearly missed. Our thoughts are with Andy and the entire Spade family at this time."



For more on Spade's passing, watch the video above.

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