Kevin Hart, 50 Cent and More Stars Mourn Kim Porter

According to emergency dispatch audio the call came in as a patient in cardiac arrest

Sean "Diddy" Combs' longtime girlfriend Kim Porter has died, according to reports.

Stars quickly took to social media to pay tribute to Porter, and share their condolences with her family.

Authorities arrived at Porter's Los Angeles home around 11.30am on Thursday after receiving a call that someone at the residence was in cardiac arrest.

Sources told TMZ that Kim had been "suffering flu-like symptoms, and possibly pneumonia, for several weeks".

A representative for Kim Porter confirmed the news and asked for privacy for the family.

T.I.P. penned this message to the hip-hop businessman and his family: "We'll always love you and cherish your handsome spirit". Porter and Combs shared three children - son Christian Combs, who was born in 1998, and twin daughters Jessie James and D'Lila, who were born in 2006. Her cause of death is unclear at this time.

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Heartbroken Missy Elliott led the celebrity tributes to Kim Porter, shortly after Diddy's model and actress ex was found dead at home on November 15.

The record producer and entrepreneur has three more children from other relationships and Porter had a son - Quincy Brown - from her previous relationship with singer Al B Sure.

Sharing a series of pictures Kim with her children and Piddy, the "Umbrella" hitmaker wrote: "this is heavy. heartbroken about this man". "I know Puff is hit up right now", he said, "he loved her for real".

'She was loved and will be missed dearly. "Chin up puff, Positive vibes only". They broke up in 1994 and again in 2007.

Since then it has been claimed Diddy is shocked and devastated by the news, as a source told People magazine: 'He and Kim were still very close friends and co-parents even though their romantic relationship didn't work, they were still a family'.