Mick Jagger’s model-turned-designer girlfriend L’Wren Scott, 49, killed herself in a Manhattan apartment Monday, police have confirmed.

Her assistant reportedly found her hanging by a scarf inside the eighth floor apartment at 200 Eleventh Avenue around 10 a.m., reports The New York Post.

Police did not suspect foul play, a source said, but the medical examiner’s office will determine a cause of death.

TMZ reports no suicide note was found.

Scott has been romantically involved with Rolling Stones rocker Mick Jagger since 2001, often posting pictures of their travels together on Instagram.

A spokesperson for Jagger, who is currently on tour in Australia, says he is "completely shocked and devastated by the news."

Scott, who was raised by Mormon adoptive parents, initially found success as a top celebrity stylist in Los Angeles.

In 2006, she launched her own fashion line, followed by a hand bag line in 2011. Scott collaborated with Banana Republic with an exclusive holiday collection including apparel and accessories for women.

Sarah Jessica Parker, Angelina Jolie, Nicole Kidman, Penélope Cruz, and Amy Adams have all worn Scott's dresses to the Academy Awards.

The fashion world is in shock after today's news:

Rest in peace, L'Wren Scott. You'll forever be missed. — Marc Jacobs Intl (@MarcJacobsIntl) March 17, 2014

A solemn & very sad moment to remember L'Wren Scott. May she rest in peace. — DKNY PR GIRL® (@dkny) March 17, 2014

RIP L'wren Scott, so sad to lose a beautiful strong female designer — CUSHNIE ET OCHS (@CUSHNIEETOCHS) March 17, 2014

L’Wren Scott was an accomplished, successful designer who held some of the most elegant of shows. From 2008: http://t.co/ZiTPSskDOy — New York Magazine (@NYMag) March 17, 2014

Saddened by the news of L'Wren Scott's passing. Sending thoughts and prayers to her family. — The Wall Group (@TheWallGroup) March 17, 2014

Shocked and saddened by the passing of @lwrenscott ... she was an amazing soul, talented artist and an unbelievably giving friend. RIP. — oliviamunn (@oliviamunn) March 17, 2014

RIP L'Wren Scott. We lost a truly elegant, talented & beautiful woman today. Our condolences go out to her loved ones pic.twitter.com/PzYFHJo4iS — Nico Bellay (@IAMFASHlON) March 17, 2014