A five-year-old boy has died in a suspected drowning at a water park.
Bosworth Water Park, in Leicestershire, was closed after police were called at about 15:50 BST on Saturday.
The boy was taken to hospital but later died. A man and woman have been arrested and remain in custody, Leicestershire Police said.
One woman, who was at the park with her daughter, said she had not been there long when she saw CPR being done on a little boy by the side of the water.
Samantha Scott said: "I'm not sure myself how the incident happened, there were a lot of children in the water yesterday, most with adults.
"The water was so murky with all the sand, if anyone had gone under, you wouldn't have been able to see them at all.
"I wouldn't let either of mine go in further than their knees as the water had stones underneath it too and both girls cut their feet. It looked very deep in the middle.
"The first we saw was a gentleman performing CPR, everyone had gone quiet and you could tell we were all listening for a cry or any sign everything was OK.
"The air ambulance arrived but we left just as they flew off.