A number of children are being treated by paramedics after a bouncy castle came loose from its moorings, police said.
The incident happened on Shore Road in Swanage, Dorset, on Wednesday afternoon.
A police spokeswoman said: "Dorset Police received reports at 1.46pm today that a bouncy castle came loose on Shore Road, Swanage.
"A number of children are being treated by paramedics. The air ambulance is attending."
A South West Ambulance Service spokeswoman said three children had suffered minor injuries and two had been taken to hospital in Poole complaining of neck pain.
"We received the call at 1.42pm to reports that an inflatable slide had blown over and reports that three children had been injured," the spokeswoman said.
"Two of the children were reported to be suffering from neck pain and they have been taken to Poole Hospital.
"The third child was treated on scene."
She added: "There is nothing to suggest their injuries are serious."