The three children and their mother were shopping at the Howard Centre, WGC, when the incident happened.An ambulance crew quickly rushed to their aid as they stood injured in the main entrance to the centre.Paramedics were examining the wounds on a young girl's back when the WHT arrived at the scene shortly after 3pm on Wednesday.A spokesman for the East Anglian Ambulance Service said: "We treated four people for minor injuries."No-one needed hospital treatment."
He added that a member of staff from the Howard Centre had also been injured in the incident.
The broken glass was scattered down the steps leading up to the building, forcing the police and security guards to cordon off the area.
The entrance was still closed to the public as the WHT was preparing to go to press a week after the event.
In a statement Shirley Harper, marketing executive for Land Securities, which owns the Howard Centre, said the company was sorry for the inconvenience this had caused members of the public.
She said: "Although the main entrance is out of use, the centre is not affected and stores are open as usual.
"Fire doors adjacent to McDonald's are being left open to provide an alternative entry and exit point. Commuters wishing to gain access to the station after the shops are closed can do so via the entrance adjacent to Marks and Spencer."