"Mean Girls" star Lacey Chabert mourned her sister Wendy in an Instagram post that revealed her death. Chabert shared a photo of a young Wendy along with a lengthy caption.

"Our lives will never be the same without my dear sister..." Lacey Chabert said in an Instagram tribute to her older sister, Wendy.

BREAKING: Lacey Chabert reveals ‘shocking loss’ of sister Wendy: ‘Our li... https://t.co/eRIgreD23s via @YouTube

Mean Girls’ Lacey Chabert Mourns ‘Beautiful’ Sister Wendy After Her ‘Sho... https://t.co/k6HCYP3WSZ via @YouTube

Mean Girls star Lacey Chabert’s sister Wendy is dead at 46 as actress sa... https://t.co/Qj8cXzgF9q via @YouTube