Seven of the eight children hospitalised after an inflatable slide collapsed at a fireworks funfair in Surrey in the UK have been discharged from hospital.
One boy was kept in for overnight observations but suffered injuries "not thought to be significant", police have said.
The air ambulance helped transport one of the patients to "major trauma centres" after the incident in Woking Park on Saturday evening, the South East Coast Ambulance Service said.
One witness said he was concerned earlier that evening when he saw up to 40 children playing on the "flimsy" slide at once.
The investigation into the incident is now with the Health and Safety Executive, police said.
In a statement, Surrey Police said: "Following last night's evacuation of Woking Park after children fell from an inflatable slide during fireworks night celebrations, we are pleased to update that seven of the eight victims were discharged overnight.
"The eighth victim was kept in overnight for observations, but his injuries are not thought to be significant.
"The investigation will now sit with the Health and Safety Executive."
Police have appealed for anyone with footage of what happened to contact them.
All the children injured were aged under 16, South East Coast Ambulance said.
