A 39-year old woman is scheduled to appear in court on Tuesday after a two-year old died in Becancour, near Trois-Rivieres.
The child was found without a pulse and in cardiac arrest Friday night in an apartment and was later delcared dead in hospital.
The 39-year-old woman was in the apartment and was also taken to hospital, but was released on Monday.
Provincial police first said she was an important witness in the case.
Reports have said she's the child's mother.