Ten year old Sabam Saleem remains "critical but stable" in Leeds General Infirmary, whilst her two year old brother, Raham Saleem, is said to be improving.
Police are studying cctv footage they say shows the car in the area and they are hoping experts will be able to enhance it sufficiently to make out the registration number. In the meantime, they are expected to release an image from the cctv in the hope someone may lead them to the driver.
Rayhan's father says his prayers have been answered after his little boy comes home from hospital.
Police investigating a hit and run crash in Leeds have now bailed three men they have been questioning
A two-year-old boy and his 10-year-old sister are critically ill after being knocked down in a hit and run collision, police said.