L'Wren Scott, noted fashion designer, Mick Jagger's girlfriend, found dead

(CNN) -- L'Wren Scott, a noted fashion designer who has been Mick Jagger's companion for more than a decade, was found dead in her New York apartment Monday of an apparent suicide, according to a law enforcement official familiar with the investigation. She was 49.

Scott's assistant found the designer hanging from a door knob with a scarf around her neck, the official said.

There were no signs of forced entry, and police did not find a suicide note, the official said.

Her assistant told police Scott sent a text Monday morning asking the assistant to "come by, and when the assistant arrived at approximately 10:02 a.m., Scott was dead in the living room, prompting the assistant to call police," according to the official.

The New York Medical Examiner will determine the cause of death, according to Sgt. Nieves with the New York Police Department

A spokesman for Mick Jagger said that the singer was completely shocked and devastated by the news.

Scott had been dating Jagger, 70, since at least 2003. The lanky former model designed clothes worn by a number of celebrities, including Madonna, Allison Williams and Christina Hendricks. She also created many of Jagger's looks for the Rolling Stones' 50th anniversary tour, which began in 2012 and is currently in Australia. The band called off Wednesday night's show in Perth, following the news.

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