A memorial is growing outside a London Costco following the death of a little girl who was hit by a car that crashed through the store entrance Friday.

Six-year-old Addison Hall succumbed to her injuries Sunday.

Her three-year-old sister Miah Bozek remains in critical condition.

Their mother Danah McKinnon-Bozek -- who was eight-months pregnant at the time of the accident -- is in fair condition after an emergency caesarean.

Her newborn is listed in critical condition.

Police say they still haven't decided whether charged will be laid.