A woman who was killed when she was hit by a 17.5 tonne lorry was walking with her eight-year-old son and had her daughter in a pushchair.
The lorry hit the 39-year-old, whose name has not been released, on a pedestrian crossing in London Road in Portsmouth. The road has been reopened.
The woman had crossed near Somerfield's supermarket - the children were unhurt.
The 57-year-old lorry driver, from High Wycombe, Bucks, has been arrested on suspicion of careless driving.
Police are appealing for the driver of a silver estate car or four wheel drive who stopped to help, to come forward.