A speeding car knocked down a fence in downtown Chongqing, southwest China on Thursday, injuring two children and two adults.
The driver of the vehicle said she mistook the accelerator for brake and rushed her car through the fence.
There was no other passenger on her SUV.
Drink or drug driving has been ruled out.
Thursday was China’s Dragon Boat Festival, a traditional holiday that commemorates the life and death of famous Chinese scholar Qu Yuan.