A Tasmanian man lost in a Malaysian mountain range has been found alive, weeks after being reported missing.

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The family of Hobart man Andrew Gaskell, 25, confirmed to the ABC he had been found and said they were relieved and grateful to all the people involved in the search.

Mr Gaskell, who went hiking in Mulu National Park in the Sarawak region in mid-October, was located "weak and happy", Malaysian media reported.

"Gaskell, who had gone missing on October 20, was found alive at Camp 1 at the park, confirmed Zone 6 Miri Fire and Rescue Department (Bomba) station chief Supt Law Poh Kiong," the Borneo Post reported.

It said Mr Gaskell was "currently en route to Miri Hospital for treatment".

Andrew Gaskell had been on a search for meaning on his travels. ( Facebook )

Mr Gaskell's mother, Elizabeth, confirmed to the ABC her son had been found.

She said the family was "very thankful and grateful" to everyone who had helped with the search and offered support.

"We just thank God he's been found alive," she said.

Mr Gaskell was in need of medical attention when found and the family were waiting for more information, she said.

In a statement, the Department of Foreign Affairs and Trade (DFAT) said they were "providing consular assistance and support to the family of an Australian man who was found safe on 1 November by Malaysian search and rescue personnel in Sarawak".

"Due to privacy obligations, we are unable to provide more information," DFAT said.

'Conscious and able to speak'

Malaysian media said Mr Gaskell was "found in a weakened condition by the search and rescue (SAR) team's ground party at approximately 12.30pm".

"After being examined by medical personnel upon arrival at Mulu Airport, it was discovered that he also had numerous leeches on his legs."

Mr Gaskell was "conscious and able to speak to his rescuers" the Borneo Post wrote.

Videos and photos of what appeared to be Mr Gaskell being airlifted and transferred from an aircraft to an ambulance were posted on social media.

Search for meaning

Andrew Gaskell being attended to after his rescue in Malaysia. ( RTM Sarawak )

Prior to leaving for his Asian backpacking adventure, Mr Gaskell — who described himself as a "dissatisfied engineer, some-time composer, avid hiker, keen photographer, amateur footballer, aspiring writer﻿" — wrote of his desire to "come to some sort of conclusion as to who I am".

"In August 2016, I will be embarking on a journey beginning somewhere in Asia and heading in a generally westward direction for an indefinite period of time," he wrote on his blog.

"My main travel goals are to have genuine cultural experiences with local people outside of the mainstream tourist attractions; and to climb a lot of mountains.

"And maybe, just maybe, in the course of my travels I'll come to some sort of conclusion as to who I am and what I want to do with my life. And so begins my journey beyond the horizon."

Gunung Mulu National Park ranges across 544 square kilometres of rainforest and features "fast-flowing rivers and clear jungle streams", as well as "one of the largest limestone cave systems in the world".