Girl dies after car crashes into Wimbledon school

A young girl has died after an out-of-control car crashed into a primary school building in Wimbledon, London.

Seven children and two adults were injured, with one of the children later dying from her injuries.

The Metropolitan Police said the incident was not being treated as a possible extremist attack.

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Police were called to the Study Preparatory School, a private all-girls school, at 9.54am (6.54pm AEST), along with paramedics in ground and air ambulances.

The driver of the vehicle, believed to be a Land Rover, stopped at the scene. No arrests were made.

"There are a number of people who are critically injured, as I understand it, and given the scale of the response from emergency services ... this is a very serious incident," local MP Stephen Hammond said.

Hammond said the section of the school where the crash took place caters to younger children between the ages of 4 and 8.

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The incident occurred just over a kilometre away from the All England Lawn Tennis and Croquet Club as it hosts the world-famous Wimbledon tennis tournament. Unlike the grand slam event, the school is located in a fairly remote area surrounded by local parks, horse trails and golf courses.

Police have extended a large cordon around the school and television pictures from overhead showed the car up against the wall of the building.

Dog walkers and passers-by were moved away from the scene as an air ambulance remained on the edge of Wimbledon Common, a large open space, while a number of ambulances parked nearby.

"Wimbledon is like a little village," resident Julie Atwood said. "For this to happen in Wimbledon is unheard of. It's terrible."