The children were celebrating their last day of primary school. (Nine)

Four children have died in a school jumping castle tragedy. (Nine)

Emergency services at the scene in Devonport. (Lucy Slade)

Injured children were flown from the school to hospital. Four are in a critical condition. Photograph: Grant Wells/EPA

Emergency services personnel work the scene of a deadly incident involved with a bouncy castle at the Hillcrest Primary School in Devonport, Tasmania, Thursday, Dec. 16, 2021. Multiple children have died and others are in critical condition after falling from a bouncy castle that was lifted 10 meters into the air by a gust of wind at a junior school on the island state of Tasmania on Thursday. (Grant Wells/AAP Image via AP)

Flowers have been laid in tribute to the children killed in the tragedy. (Nine)

Flowers have been tied to the fence of the school where the tragedy occurred. (Nine)

Police at the scene of the accident in Devonport. (Nine)

The accident occurred during an end-of-year celebration. (Google Maps)

A vigil has been set up at a Devonport church following the freak jumping castle accident that killed four children. (Nine)