L'Wren Scott
L'Wren Scott had been dating Mick Jagger since 2001.Reuters

Mick Jagger's fashion designer girlfriend has died in a suspected suicide.

The body of L'Wren Scott was discovered hanged in her Manhattan apartment by an assistant today (Monday). She was 49.

According to reports, her favourite scarf was tied around her neck.

Although the cause of death has not been confirmed, a police source said that no foul play was suspected.

Scott had dated the Rolling Stones frontman since 2001. She had designed outfits for stars including Michelle Obama, Carla Bruni-Sarkozy, Naomi Campbell and Uma Thurman.