'That '70s Show' actress Lisa Robin Kelly dies

Actress Lisa Robin Kelly reportedly died in her sleep Wednesday night.

Lisa Robin Kelly, who played older sister Laurie on the American sitcom "That '70s Show," but was more recently in the news for her legal troubles, has died.

"That '70s Show" actress Lisa Robin Kelly has died at the age of 43 in her sleep Wednesday night, days after checking into a treatment facility for substance abuse, her agent said on Thursday.

According to agent Craig Wyckoff, Kelly voluntarily checked herself into the facility. "She had been fighting demons for a while and finally lost her battle," he said.

Actress Lisa Robin Kelly from "That 70s Show" dies

Actress Lisa Robin Kelly from "That 70s Show" dies
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Kelly portrayed Laurie Forman, the promiscuous older sister of Topher Grace's lead character Eric, on the FOX sitcom, which ended in 2006. She co-starred in about 50 episodes before being replaced by actress Christina Moore in the sixth season.

"I spoke to her on Monday, and she was hopeful and confident, looking forward to putting this part of her life behind her. Last night, she lost the battle," Wyckoff said.

Further details on Kelly's death have yet to be released.

The actress had admitted to drinking problems in the past, and was arrested in 2010 on a charge of driving under the influence. She was arrested again in June 2013 for a suspected DUI, but was later released.

Kelly also appeared on the TV shows "Murphy Brown" and "Married... With Children."

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Reuters contributed to this report.

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