Mother of 12yo Zane Mellor who died in tragic bouncy castle accident shares heartfelt Facebook post

The mother of a young boy who died in the tragic bouncy castle accident in Tasmania has shared a heartbreaking Facebook post. 

Zane Mellor, 12, was one of five Devonport Hillcrest Primary School students who died on Thursday, with several others critically injured.

The incident occurred when a sudden gust of wind lifted the bouncy castle into the air and led to the children falling from a height of 10m. 

Australian media reported that the school was holding its end of year celebration. 

Mellor's mother Georgie Gardam penned a moving and heartbreaking Facebook post revealing her "world is broken".

"To the love of my life, my firstborn, my world, I miss you beyond words," she wrote. "This isn't real, how do we go on without you, we know we gave you the best life."

Gardam said she spoiled her son and that he was an avid gamer and loved playing online with his friends. 

"I may of let you game a little too long or spoil you with too much McDonald's and Hawaiian pizza and buy too many PlayStation games but everything I did in life was for you," Gardam wrote.

"I have let your online friends know you won't be back online to smash them in Fortnite for a while… my world is broken.

"I am empty, I am coming to hold your hand and kiss your face baby, I love you."

Gardam told 7News in Australia that she appreciates the support she has received from the local community. 

"I just needed to see what everyone had done and I really appreciate it so much but nothing brings my baby home," Gardam said.

"I have all these Christmas presents and we've opened some of them and just sat them up for him."

Grace Johnston, who is a friend of Mellor's mother, has set up a GoFundMe page to support Gardam "in this hard time after the tragic loss of her gorgeous boy Zane".

"Zane was such a beautiful caring, gentle soul who had challenges growing up with his autism and ADHD but that never set him back, he kept achieving and Georgie is the most amazing mum, she never gave up and was by his side every step of the way encouraging, loving and fighting for him," Johnston wrote on the GoFundMe page.

Johnston's GoFundMe page has raised over AU$65,000 for Gardam, while the community support has been on full show with more than a million dollars raised to support those mourning the tragedy.

Australian Prime Minister Scott Morrison visited the primary school with his wife Jenny to pay their respects and has also announced $800,000 to fund trauma counselling.

"I want to extend our deepest sympathies to the five families in particular who have lost those precious young ones and we think also of the families of the three who are still in a terribly critical condition," Morrison told journalists in Hobart ahead of the trip.

A memorial has been established out the front of the primary school that stretches 50-metres-long with flowers, letters and children's toys. 

Authorities continue to examine whether the inflatable castle was properly tied down.