A woman is in a critical condition in hospital after she was hit by an articulated lorry in Bradford.
The 43-year-old Skipton woman had been walking along Sticker Lane, near its junction with Cutler Heights Lane, when the accident happened.
Police say she may have stumbled before catching the back of the lorry trailer.
The woman was taken to Bradford Royal Infirmary with minor injuries, but then transferred to Leeds General Infirmary after her condition deteriorated.
Police are appealing for witnesses to the incident.