Kirstie Alley, who won an Emmy for her role on the classic sitcom Cheers and starred in films including Look Who’s Talking, has died.

Alley died of cancer that was only recently discovered, her children True and Lillie Parker said in a post on Twitter on Monday.

“We are sad to inform you that our incredible, fierce and loving mother has passed away after a battle with cancer, only recently discovered,” it read.

“She was surrounded by her closest family and fought with great strength, leaving us with a certainty of her never-ending joy of living and whatever adventures lie ahead. As iconic as she was on screen, she was an even more amazing mother and grandmother.”

Alley starred as Rebecca Howe on Cheers from 1987 to 1993, after the departure of original star Shelley Long.

She also starred in her own successful sitcom, Veronica’s Closet, from 1997 to 2000.