Court records show a 37-year-old man has been charged with first-degree murder in the deaths of two children, whose bodies were found in a vehicle in Calgary.
Police have said the victims were under 10 years old.
The man was arrested outside the vehicle on Thursday.
The accused appeared in court Friday morning, but a publication ban prevents identifying the children.
Documents also say the children were killed on or about Wednesday.
The man is set to appear in court next week for a bail hearing.