Melbourne men Vincent Satuala Atulia and Andrew Colivas die while on holiday in Vietnam

Two young Australian men have died mysteriously in Vietnam, and their families are scrambling to get their bodies home and find answers.

Vincent Satuala Atulia, 24, and Andrew Colivas, 25, were reportedly on holiday in Southeast Asia with friends when they died unexpectedly.

Relatives of the two Melbourne men confirmed their deaths on social media on Monday.

The Department of Foreign Affairs and Trade (DFAT) is providing consular assistance to the family of a man who died in Vietnam, as well as three other Australians, The Herald Sun reported.

The cause of death of the men remains unknown.

Daily Mail Australia has contacted DFAT for further comment.

The men’s families have set up separate online fundraisers to help cover the upcoming costs of their repatriation and funerals.

Mr Colivas’ appeal has already raised more than $35,000, while Mr Atulia’s has raised more than $52,000.

The family of Melbourne man Andrew Colivas (pictured) announced his death on Monday

Vincent Satuala Atulia (pictured) was traveling with friends in Vietnam when he unexpectedly passed away

Mr Atulia’s family described him as a young, deeply religious man who dedicated his life to his family and friends.

He was also the only one who provided for his family.

“He was the epitome of great excellence. A young, generous heart who always cared for others before himself,” they wrote.

‘Most who knew Vincent knew that family and God were always the central goals of everything he did in his short life.

‘He gave his life to care for and protect his beloved family.

‘Vincent was a loyal member of St Agatha’s Parish Cranbourne, an aspiring rugby player for the Casey Warriors rugby team, a loyal and dedicated employee of MC Labour Hire and an active member of CFMEU/CFMEU Pasifika.’

Mr Atulia’s sister, Miriama, also shared a personal tribute on social media.

“You have made your family so proud with the life you have led, the support and protection you have given us, everything you have given us: money, food, clothing and a roof over our heads,” she wrote.

‘You have done more for a family than any brother, you were always there for us when we needed you.

‘You always supported us when something happened, you were always there on time when I called you and you always protected our family, especially our parents.’

Her brother, Douglas, added: ‘The day I lost my brother, my everything, my right hand, my leader. I still wake up hoping it wasn’t true.

‘I wish I could hear your voice and see your face one last time. The pain is beyond words.

“I lost my brother, who taught me everything I know and made me who I am today. Without you, brother, I’m lost.”

‘We should grow old together and see you get the best out of yourself in life, achieve your goals and set a good example.’

The families of Mr Colivas and Mr Atulia (pictured) both described their deaths as ‘sudden’

Mr. Colivas was also remembered as a religious family man and a talented athlete with a passion for boxing.

“He tragically lost his life in Vietnam and it will be a long process to get him home,” the family wrote.

‘He was a kind, generous and selfless person who loved his family, friends and all that he undertook in life.

‘Andrew was someone who did everything he could to help and protect everyone.

‘He was a devoted member of the Orthodox Church of St. Gregory and was completely committed to his faith.

‘We pray for strength in this time of grief, may God bring you home safely.’