Actress Lisa Robin Kelly, who played older sister Laurie in That '70s Show, has passed away in her sleep. She was 43.
Speaking to People magazine on Thursday, her agent, Craig Wyckoff, said: "Unfortunately Lisa Robin Kelly passed away last evening."
Wyckoff continued: "Lisa had voluntarily checked herself into a treatment facility early this week where she was battling the addiction problems that have plagued her these past few years."
He added: "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. Cause of death has not been issued yet and no death certificate has been issued either."
Kelly starred in That '70s Show for five years and was then replaced by Christina Moore.
