Several children are reportedly being treated by paramedics after a bouncy castle came loose in Swanage, Dorset Police said.
The inflatable castle was said to have come loose during a family fun day on Shore Road shortly before 1.46pm on Wednesday.
A police spokeswoman said that a “number of children” were being treated by paramedics and that the air ambulance was also in attendance.
The Mirror quoted a South West Ambulance Service spokeswoman as saying three children had been injured.
One was treated at the scene, while the other two were taken to Poole Hospital after suffering from “neck pain”, she said.
The spokeswoman added: “There is nothing to suggest their injuries are serious.”
Summer Grant, seven, died after a bouncy castle was blown away in March at a funfair in Harlow, Essex.