An adult film star who accused prominent porn performer James Deen of sexual assault last year collapsed and died suddenly at her southern California home over the weekend.

Amber Rayne, born Meghan Wren, was 31 years old.

Ed Winter, assistant chief of the Los Angeles County coroner's office, told the Los Angeles Times that Rayne was pronounced dead at around 3:15 p.m. local time Saturday. 

Winter said a friend was present at Rayne's home in the Sun Valley section of Los Angeles at the time she collapsed, but did not give further details. Her death was being investigated as a possible accident or overdose, pending an autopsy. 

Rayne made her adult film debut in 2005 and starred in more than 500 pornographic movies before retiring last year. 

In December of last year, Rayne became one of at least eight women to accuse Deen of sexual assault and abusive behavior on adult film sets. 

"His face twisted and he came down on my face two times — close-fisted," she told The Daily Beast of the alleged incident, which took place in 2006. "There was so much blood I couldn’t finish the scene."

Deen has denied all the accusations. 

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