LOS ANGELES (AP) — Kim Porter, Diddy’s former longtime girlfriend and the mother of three of his children, has died at age 47, authorities said.

Porter was found unresponsive Thursday at her Los Angeles home, where paramedics pronounced her dead. The cause was not immediately clear, and an autopsy will be performed, the LA County coroner’s office said.

Sean “Diddy” Combs and Porter, a former model and occasional actress from Georgia, were a couple on-and-off from 1994 until they split for good in 2007.

Their children are a 20-year-old son, Christian, and 11-year-old twin daughters, D’Lila Star and Jessie James. Combs also has three other children from other relationships.

Porter also has a 27-year-old son who was largely raised with Diddy, Quincy Brown, from a previous relationship with singer Al B. Sure. Brown, an actor, appears on the Fox series “Star” and has had a handful of other TV and film roles.

As an actress, Porter appeared on the TV series “Wicked Wicked Games” in 2006 and 2007 and in the film “Mama I Want to Sing” in 2011.