A one-year-old girl is among seven people injured after a car mounted the pavement and reportedly hit the buggy she was riding in.
The silver Volkswagen Polo left the road outside The Friary Centre in Guildford, Surrey, at 10.38am and hit a number of people.
As well as the one-year-old girl, a two-year-old boy was injured along with a man in his sixties and four women.
BBC reporter Allen Sinclair wrote: "We understand it then collided with a small red children's ride-on car - the type used at that shopping centre for parents to push around young kids.
"An eyewitness said two young children were inside the plastic toy car when it was hit."
A South East Coast Ambulance Service (SECAmb) spokesman said "SECAmb can confirm that it responded to reports of a vehicle hitting a number of pedestrians in North Street, Guildford, at approximately 10.40am today," A South East Coast Ambulance Service (SECAmb) spokesman said, The Press Association reports.
"Six ambulance crews, four ambulance cars attended the scene along with the two air ambulances. Seven patients have been treated and taken to hospital.
"The casualties include a one-year-old girl who has been airlifted to St George's Hospital in Tooting and a man aged in his sixties who has also been airlifted to St George's Hospital. A woman with leg injuries has been taken to St George's Hospital by road.
"The remaining patients have all been taken to Royal Surrey County Hospital in Guildford. They are a two-year-old boy and three further women all of whom are not thought to have suffered life-threatening injuries."
A witness told Get Surrey that she saw the car collide with six people, including a toddler and a baby.
She added that police had informed her that the car had suffered a fault, causing the incident.
She said: "I saw the car lose control. It mounted the pavement and took out a bollard. It then hit about six pedestrians, including a toddler and a baby."
A Surrey Police spokesman said: "The collision took place in North Street outside the main entrance to The Friary Centre.
"A silver VW Polo left the road and was involved in a collision with a number of pedestrians.
"Emergency services quickly attended and remain at the scene. Road closures are in place in the immediate vicinity and motorists and pedestrians are advised to avoid the area until further notice."