A sixth child has died in hospital after a bouncy castle was raised into the air during a school function in Australia late last week. Chace Harrison, an 11-year-old boy, “passed away in hospital this afternoon,” Tasmania Police Commissioner Darren Hine told CNN.

“Our thoughts continue to be with his family, and the families and loved ones of all the children involved, during what is an incomprehensibly difficult time,” Hine added.

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The boy was among nine children at Hillcrest Primary School in Devonport, Tasmania, who fell 32 feet (10 metres) from a bouncy castle that was lifted by the wind at an end-of-year function. 

The tragedy claimed the lives of six schoolchildren in total. Two of the children are still in critical condition in the hospital, while the third is healing at home, according to authorities. 

With the families’ agreement, police already disclosed the names and photographs of the five other victims. Addison Stewart, 11, and Jalailah Jayne-Maree Jones, Jye Sheehan, Peter Dodt, and Zane Mellor, all 12 years old, were among those killed.

The reason for the catastrophe is being investigated, including the strength of the wind at the time and how the castle was anchored to the ground.

Commissioner Hine said the Devonport Criminal Investigation Branch’s priority will be to “interview all witnesses, gather and analyze forensic evidence and all environmental aspects, including weather patterns and conditions at the time of the incident.”

“Given the magnitude of this critical incident and the need to speak to a large number of traumatized children within a short period of time, we have accepted an offer from NSW Police to assist in conducting interviews in relation to the investigation,” Hine added. 

According to the school’s Facebook page, the bouncy castle was one of several treats provided to pupils as part of the “Big Day In”.  A Water Play Zone and Zorb Balls were among the other activities. 

A wind blow pulled the castle off the ground, according to Hine, and “close to 40” children were participating in the activities. He stated that other adults were on hand to supervise the event and administer first aid until emergency services came. 

The tragedy stunned Australia, with Prime Minister Scott Morrison telling reporters shortly after that it was “just unthinkably heartbreaking”.