Brittany Murphy, who starred in such films as Just Married and Sin City died on Sunday after going into cardiac arrest, the Los Angeles Times reported.
She was 32.
The paper said the Los Angeles Fire Department responded to "a medical request" at Murphy's home in West Hollywood, and took her to Cedars-Sinai Medical Center near Beverly Hills, where she was pronounced dead.
The death was first reported by online gossip site TMZ.

A Los Angeles judge has told Lindsay Lohan she must attend weekly alcohol classes, Us Weekly report.
The actress is currently on probation for a drink-driving charge and has been reminded the weekly education sessions she was told to take as part of her punishment must take priority in her life.
"This has to be a top priority whether she has a job somewhere else or doesn't or something else comes up. This has to be done once a week," Judge Marsha Revel explained.
"Right now, the other things will take second place and this will take first place. I am going to order that this has to be done. It's been long enough."