Police are appealing for information after a taxi was stolen as an elderly woman was climbing into the vehicle.
The incident happened at about 3.05pm yesterday (Thursday) in the Asda car park in Rooley Lane, Bradford.
The taxi driver was helping the 94-year-old woman into the rear of a black VW Passat, when a man jumped in and drove the vehicle away.
The woman fell to the floor and suffered a fractured shoulder.
She remains in hospital today in a stable condition.
The suspect is described as an Asian male with dark hair who was possibly wearing a hooded top.
Detective Inspector Ryan Bragg, of Bradford District CID, said:
"This incident happened in a busy supermarket car park in broad daylight and I am certain there will have been people who witnessed what happened, or people who may have seen the suspect before he approached the vehicle.
"We would also like to hear from anyone who may have seen a vehicle of similar description driving erratically after the incident."
Anyone with information is asked to contact Bradford District CID on 101, quoting crime reference 13160149006 or the independent charity Crimestoppers on 0800 555111.

Milton Keynes 12-Year-Old Scores in Top One Per Cent in Mensa Tests
Suspected £6,000 Drugs Haul Seized in Manchester City Centre
Halifax Residents Asked How £20m Community Investment Should Be Spent
Former Girlington Allotment Site to Become New Community Park
Three Men Jailed Over UK’s Largest Illegal Phone Smuggling Network
Piccadilly Gardens Transformation Approved with Work to Start This Autumn
Four Keighley Shops to Appeal Alcohol Licence Bans
Fresh Concerns Raised Over Proposed Night Flight Rules at Leeds Bradford Airport
Murder Investigation Launched After Death of 52-Year-Old Man in Rochdale
Leeds Christmas Market to Return with New Yorkshire Twist
Barnsley Man Jailed After Shop Worker Stabbed During £50 Robbery
Bradford Driver Jailed After Nitrous Oxide-Fuelled Crash Leaves Woman Seriously Injured
The Golden Era
Legal Show
Alim OnAir
Bhangra Nights