A one-year-old girl was knocked down and killed in front of her home, according to horrified onlookers.
The devastated father was seen cradling the dying infant outside the home in Beeston, Leeds, West Yorkshire.
The horrific incident unfolded in Beeston, on Friday evening, according to posts on social media.
One read: “I just left a horrific scene on a block of new houses.
"A woman was wailing. I saw a man holding a lifeless child in his arms.
“Everybody surrounded them. When I realised what had happened it just broke my heart.
"Parents please take care of children. The poor darling.”
West Yorkshire Police said: "Police were called to an address on Coupland Road, Leeds at about 8.10pm on Friday, September 16, to a report a one-year-old child had been seriously injured in a collision with a car on a driveway.
"Emergency services attended the scene and a small female child was taken to hospital.
"Sadly, the child died shortly afterwards from her injuries.
"Enquiries remain ongoing today by the Major Collision and Enquiry Team and specialist officers are working to support the family at what is clearly a tragic time."
It comes after a heartbroken dad accidentally killed his three-year-old son who was playing on his bike on the family farm, an inquest heard.
Little Ianto Jenkins was found with his bike still between his legs after being hit by a pick-up truck driven by his dad.
His father Guto Jenkins, 32, was going to make a delivery of topsoil and did not see the boy from his pick-up when the accident happened.
An inquest heard the boy suffered head injuries at the remote countryside farm.
Mr Jenkins said he wanted to take little Ianto with him on a delivery run - but the boy had changed in mind and wanted to remain at the farm to play with his sister and cousin on their bikes.
The dad said he checked the mirrors and over his shoulder before pulling away in the silver 4X4 Volkswagen Amarok pick-up and did not see his child.
He explained: "I did not see him at any point despite checking my mirror and over my shoulder.
"I did not see, hear, or feel anything unusual.
"I received a call from my mum saying ‘Ianto is dead’. It was the worst call of my life."
Mr Jenkins, who worked for a building firm and ran his topsoil business on the side, said: "I have no idea how Ianto came to be struck.
"I do not know what part of the trailer struck him.
"I still have flashbacks. There's not a day that goes by I do not think of Ianto and the circumstances of his death at the age of three.
"It is a waking nightmare that I will live with for the rest of my life. The pain and guilt will not go away."
