According to multiple USA reports, police were called to Kim's house at around 11.30am, where officers found her unresponsive.
"In ending this relationship, I made a decision that was in the best interest of myself, Sean and our family, Porter said".
No official cause of death has been released.
Porter was a former model Diddy dated off-and-on from 1994 to July of 2007, and is the mother of three of his children, Christian, 'Lila Star, and Jessie James.
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They added: "Sending prayers to all who knew and loved her".
In a 2009 interview with Essence, Porter said the couple never married because she thought Combs was not prepared for that commitment. "It's not like that with us", Porter explained.
Porter continued, "We're friends". "Sean and I have this bond, this friendship. IM SPEECHLESS you were one of the first to believe in me as artist and believer".
She also had a son, Quincy, with R&B singer Al B. Sure!, according to Yahoo News. Combs also has three other children with other women. She later dived into acting with respectable roles on shows like Law & Order and Wicked Wicked as well as films like Games, The Brothers and Mama, I Want to Sing.
The entire family was most recently seen together at the premiere of Quincy's Netflix movie The Holiday Calendar last month.