Seven people, including two children, were hurt when a car struck a school building in London.
The Study Preparatory School on Camp Road in Wimbledon was struck by a Land Rover.
Girls between the ages of four and eleven can receive instruction at the £16,000 per year institution.
Several of the injured are in critical condition, a local MP has said.
Scotland Yard said in a statement: ‘Officers remain at the scene of a serious collision at a primary school in Wimbledon.
‘Police were called at 09:54hrs on Thursday July 6 to reports that a car collided with a building at the school in Camp Road.
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‘Officers attended, along with paramedics from the London Ambulance Service and London’s Air Ambulance.
‘At this time nine people are reported injured, these include two adults and seven children. We await further updates on their conditions.’
The driver of the vehicle stopped at the scene, the force added. There have been no arrests.
The Study is located less than a mile from where the Wimbledon Tournament is taking place.
Stephen Hammond, the Conservative MP for Wimbledon, described the crash as an ‘Extraordinarily distressing and tragic incident on the last day of term… there has actually been a major incident declared.
‘The air ambulance, the ambulance, the fire services, and the police are all in attendance.’
Speaking to BBC News, Mr Hammond added: ‘The size of the response tells you how serious the incident is and there are a number of casualties, and I understand that a number of those are being treated as critical.’
Fire services have also sent several services to the scene, with two engines and two rescue units outside the school.
Video from the scene shows a picnic display outside the school, with a table and yellow picnic blanket laid out on the grass.
Part of a nearby fence seems to be missing in the footage.
In a tweet earlier, the Met said: ‘Officers are responding to an incident at a primary school in Camp Road, Wimbledon.
‘We were called at 09:54hrs to reports that a car collided with a building at the school. Several people are being treated at the scene.
‘We will share further updates when we can.’
The London Ambulance Service has been contacted by Metro.co.uk for comment and, like the Met, said further updates would be available shortly.
Cllr Max Austin, who represents the Wimbledon Village ward, posted on Twitter: ‘Thank you to emergency services for attending. I hope all receiving treatment make a speedy