A woman was seriously injured in York Road on Friday morning when an air-conditioning unit fell on her head while she waited at a bus stop.
Police cordoned off busy York Road in Waterloo soon after the incident happened at 9.10am.
The air ambulance was sent to the scene but the injured woman was taken to King's College Hospital by road ambulance, even though the incident took place just yards from St Thomas' Hospital's A&E department.
The Health and Safety Executive has launched an investigation.
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