The 34-year-old man and 27-year-old woman cannot be identified under the provincial Youth Protection Act because it could identify the children.
The couple was arrested Monday morning.
The two are facing a number of charges, including forcible confinement, assault, and failure to provide the necessaries of life to a child — in this case, food — after four children aged four, five, six and 14 were removed from their care.
Police said the five-year-old was so badly malnourished that they feared for his life.
The man is also facing charges of sexual assault, invitation to sexual touching and sexual contact with a minor.