For the past several months, 23-year-old adult film actress Olivia Lua had been battling addiction to prescription drugs and was seeking help by returning to rehab after a recent relapse.

But something evidently went wrong with her program, because the actress, who sometimes used the screen name Olivia Voltaire, died Thursday at the West Hollywood rehab center. She had consumed a “cocktail of prescription drugs and alcohol,” according to a statement from her agency, Hollywood Life reported.

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Porn star August Ames kills herself after Twitter uproar Lua is the fifth star of pornographic films to die in the past three months — the second in eight days. At least one of those deaths was ruled a suicide, while substance abuse appears to have been factors in the deadly downward spirals of three other women, including Olivia Lua, as well as Olivia Nova on Jan. 10.

“Much comment has recently been made on the number of [adult-film stars] having passed in the last year and with great sadness, we must inform that the list has grown longer,” the agency LA Direct Models said. LA Direct Models represented both Lua and Nova.

The Adult Performers Actors Guild, the union that represents adult film performers, tweeted out its condolences.

It’s with unfortunate feelings we have to type this again. The board is sending love and the sincerest sympathy to the family and friends of the beautiful Miss Olivia Lua. Rest in Power dear one ~ KP 💋 we shall never forget — Adult Performers Actors Guild (@APAGunion) January 18, 2018

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Lua, who was nominated in November for a Hottest Newcomer award at the AVN Awards, tweeted out a photo the night before she died. She was dressed all in black, and said in a caption, “I feel it everywhere, nothing scares me anymore,” quoting a Lana Del Rey song called “Summertime Sadness.”

I feel it everywhere, nothing scares me anymore 🌙 pic.twitter.com/oi4QMoBVgj — Olivia Lua † (@OliviaxLua) January 17, 2018

While drugs weren’t listed as the immediate cause of Nova’s death, she had reportedly been told by doctors that she would die unless she got sober, the Daily Mirror said.

A new coroner’s report on Nova’s death ruled that the 20-year-old from Minnesota — whose real name was Lexi Forde — likely died of sepsis, brought on by a severe infection of the urinary tract and kidneys, the Daily Mirror said. She had been dead about 12 hours before she was found in her home in Las Vegas.

But Nova’s primary health concern in the weeks before her death was getting sober, her close friend Jimmie Romero told Mirror Online. “Lexi knew her days were limited, she was told in October by doctors,” he said.

In December, Nova had struck out at a fan who accused her of using heroin, revealing that she had a boyfriend who died from an overdose from the drug in April.

“I’ve never done heroin,” tweeted the actress, who had revealed over the summer that her true dream as a performer was to be a singer like the late Amy Winehouse — who also battled substance abuse.

“My boyfriend killed himself two days before my birthday in April on [heroin], that’s not cool to poke at…not over him,” Nova said in her tweet.

But while Nova may never have used heroin, she had struggled with other substances, Romero said.

“She was at a friend’s house trying to get sober,” he said, according to the Daily Mirror. “She had three days off of everything. She said she wanted to change her lifestyle — she looked in my eyes and said to me, ‘I want to stop and change my life. I have a family that loves me.’ ”

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LA Direct Models emphasized that the deaths of Lua and Nova weren’t connected. But fans have raised concerns that the deaths of all five women show that performers are not being given the help and support they need by the industry, Hollywood Life and other outlets are reporting.

The other actresses who have died recently are: Shyla Stylez, 35, who died suddenly in her sleep at her mother’s home in British Columbia in November; August Ames, 23, who died by suicide on Dec. 5 in her home in the San Fernando Valley; and Yuri Luv, 31, who succumbed to a suspected drug overdose in her Los Angeles home on Dec. 13.