Mick Jagger's ex-wife, Bianca Jagger, was among the first to pay tribute to the late L'Wren Scott, who was found dead in her Manhattan apartment earlier today.
A press officer from the New York Police Department told the Huffington Post website that the department had responded to a call at 10.05am at the address, where they found a 49-year-old woman unconscious and unresponsive.
They do not suspect foul play, and are treating it as a suicide. However, a medical examiner is yet to determine the cause of death.
One of the first to pay her respects was Mick Jagger's ex-wife, 68-year-old actress Bianca Jagger, who posted: "Heartbroken to learn of the loss of the lovely and talented L'Wren Scott. My thoughts and prayers are with her family. May she rest in peace."
L'Wren Scott: Career in pictures
L'Wren Scott: Career in pictures
1/20 L'Wren Scott
L'Wren Scott attends The Serpentine Gallery Summer Party at The Serpentine Gallery in London, 2013
2/20 L'Wren Scott and Val Kilmer
Val Kilmer and L'Wren Scott arrive at a dinner honoring the spirit of Special Olympics at the White House, 2000
3/20 L'Wren Scott and Mick Jagger
L'wren Scott and singer Mick Jagger arrive at the World Premiere of 'Alfie' at the Empire Leicester Square in London, 2004
4/20 L'Wren Scott and Karl Lagerfeld
L'wren Scott and Karl Lagerfeld chat backstage at the Chanel fashion show as part of Paris Fashion Week (Haute Couture) Spring/Summer 2005 in Paris
5/20 L'wren Scott, Victoria Beckham and Amira Casar
L'wren Scott, Victoria Beckham and Amira Casar attend the Chanel fashion show during Paris Fashion Week (Haute Couture) Spring/Summer 2006 in Paris
6/20 L'Wren Scott
Designer L'wren Scott attends the Sidaction Party raising funds in support of AIDS during Paris Fashion Week (Haute Couture) Spring/Summer 2006 at Pavillon D'Armenonville in Paris
7/20 L'Wren Scott
L'Wren Scott arrives at the Nina Ricci show during Paris Spring/Summer 08 fashion week in Paris, 2007
8/20 L'Wren Scott
L'Wren Scott attend the British Fashion Awards 2008 held at The Lawrence Hall in London
9/20 L'Wren Scott
L'Wren Scott arrives at the 'Shine A Light' New York premiere at the Ziegfeld Theater in New York, 2008
10/20 L'Wren Scott and Mick Jager
L'Wren Scott and Mick Jager arrive at the 2009 Vanity Fair Oscar Party at Sunset Tower in West Hollywood
11/20 Dan Williams, Jade Jagger, Mick Jagger and L'Wren Scott
Dan Williams, Jade Jagger, Mick Jagger and L'Wren Scott attend the Jade Jagger shop opening party in London, 2009
12/20 L'Wren Scott and Mick Jagger
L'Wren Scott and Mick Jagger attend the 'Shutter Island' premiere at the Ziegfeld Theatre in New York, 2010
13/20 L'wren Scott and Patti Hansen
L'wren Scott and Patti Hansen attends the 'Stones in Exile' screening at The Museum of Modern Art in New York, 2010
14/20 L'Wren Scott, Oona Ingle-Finch and Sydney Ingle-Finch
L'Wren Scott, Oona Ingle-Finch and Sydney Ingle-Finch attend Finch's Quarterly Cannes Dinner at the Hotel du Cap as part of the 63rd Cannes Film Festival in Antibes, 2010
15/20 Mick Jagger, L'Wren Scott and Tommy Hilfiger
Mick Jagger, L'Wren Scott and Tommy Hilfiger arrive for the screening of 'Stones in Exil' during the 63rd Cannes Film Festival in Cannes, 2010
16/20 Diego Della Valle and L'Wren Scott
President and CEO of Tod's Diego Della Valle and L'Wren Scott attend the 3rd Annual Finch's Quarterly Review Filmmakers Dinner honoring Oscar-winning British film producer Jeremy Thomas and sponsored by Tod's and the IWC at Hotel du Cap-Eden-Roc in Cannes, 2011
17/20 Raf Simons and L'Wren Scott
Raf Simons and L'Wren Scott attend the Christian Dior Haute-Couture Show as part of Paris Fashion Week Fall / Winter 2013 in Paris, 2012
18/20 Stephen Jones and L'Wren Scott
Stephen Jones and L'Wren Scott attend the L'Wren Scott cocktail party during London Fashion Week Fall/Winter 2013/14 in London
19/20 L'Wren Scott
L'Wren Scott attends the British Fashion Awards 2013 drinks reception at the London Coliseum in London
20/20 Jade Jagger, L'Wren Scott, Georgia May Jagger and Mick Jagger
Jade Jagger, L'Wren Scott, Georgia May Jagger and Mick Jagger attend the annual Serpentine Gallery Summer Party co-hosted by L'Wren Scott at The Serpentine Gallery in London, 2013
Marc Jacobs, the former Creative Director of Louis Vuitton and current head designer for his own eponymous and diffusion lines, posted the following on Twitter:
Rest in peace, L'Wren Scott. You'll forever be missed.Marc Jacobs Intl (@MarcJacobsIntl) March 17, 2014
"L'Wren Scott had a very clear notion of style which informed everything she did," Vogue editor Alexandra Shulman said. "It's not easy making the transition from stylist to designer, but every year L'Wren's recognition as a designer and creator of a brand was increasing."
Actress Olivia Munn posted: "Shocked and saddened by the passing of @lwrenscott ... she was an amazing soul, talented artist and an unbelievably giving friend. RIP." Similarly, Shameless actress Emmy Rossum tweeted: "So sad to hear of the death of L'Wren Scott. What a beautiful woman and an incredible designer."
"Such sad news. Our condolences are with L'Wren's family and friends," Duran Duran wrote.
Scott entered her career in fashion as a stylist, launching her own line in 2006.
Famous fans of her range included Oprah Winfrey, Nicole Kidman and Michelle Obama. Rumour had it she was set to design the wedding dress for Angelina Jolie for her forthcoming nuptials with Brad Pitt.
Scott was forced to cancel a recently scheduled London Fashion Week show following production delays.