Kim Porter, actress, model, and mother of three kids with Sean “Diddy” Combs, died on Thursday. She was 47.

“Sadly, I can confirm the passing of Kim Porter. I ask that you give the families privacy at this time,” a rep told Page Six.

The cause of death is unknown at this time. Law enforcement sources tell TMZ that authorities were called to Porter’s home in Toluca Lake, Calif. on Thursday after a 911 call reported “a patient in cardiac arrest.” Porter had reportedly been suffering from pneumonia for weeks, but it’s unclear how she died.

Porter and Diddy began dating in the mid-1990s and their relationship ended in 2007. They had three children—Jessie James, D’Lila, and Christian—together. Porter also has a son, Quincy, from her relationship with Al B. Sure!

Celebrities took to Twitter to mourn her passing and offer their condolences.