The uncle of two children critically injured in a hit-and-run in Leeds has made an emotional appeal for information.
"I just find it really distressing, it's really sickening, you know for a person to do that, to not think twice that there's children crossing," Aroon Rafique said.
"And not even that, not to stop the vehicle and turn around and just to see how they're doing."
Two-year-old Raham Saleem and his sister Sabam, 10, were walking home after buying onions for the family's Eid celebrations when there were struck by a silver Vauxhall Astra.
Detective Superintendent Paul Taylor from Leeds Homicide Inquiry Team said: "We've got very good CCTV from the local area and we have identified the offending vehicle as being a silver Vauxhall Astra...
"I would encourage the driver of that vehicle or any passengers, if there were any passengers, to come forward. I would like them to come and see us before we come and see them."
West Yorkshire Police say the driver sped away from the scene in the Hyde Park area of Leeds on Saturday evening after slowing down to see what had happened.
What I've heard from other people around the neighbourhood, they've said that, the person who was driving the car, he had been trying to avoid the speedbumps... and for some reason, he'd not seen them, and collided into them.
I just find it really disterssing, it's really sickening, you know for a person to do that, to not think twice that there's children crossing, and not even that, not to stop the vehicle and turn around and just to see how they're doing.