GRAND ISLAND, Neb. (AP) — Hall County prosecutors say no criminal charges will be filed in the drowning of a 5-year-old Lincoln girl at a Grand Island water park.

Hall County Attorney Jack Zitterkopf said in a news release Tuesday that Nubari Koffree’s drowning has been ruled accidental.

Nubari was with her mother at the Island Oasis Water Park on July 18. The little girl was found in the wave pool area. Grand Island spokeswoman Wendy Meyer says the wave pool operates in 10-minute intervals and was not running at the time of the accident.

Officials have said it was the first drowning to occur in the 21 years the water park has been open.