Two workers have been pulled from a hydropower tunnel alive nine days after deadly floods tore through the Nepal-Tibet border region.

The moment rescue crews pulled the dirt-covered men from the tunnel to cheers from all those around on Friday afternoon was posted to social media by Nepal Electricity Authority assistant manager Asha Khanal.

“Please trust the Nepal Army and rescue teams,” Khanal wrote in a follow-up post.

“I sincerely request all Nepali media not to disturb the operation or create crowds at this critical time. We are all on the same side, with one priority: Saving lives.”

Nepalese politician Shri Ram Neupane and Brigadier General Raja Ram Basnet confirmed two men had been rescued from the Trishuli 3A project on Friday.

Local officials said the pair were a 30-year-old mechanical foreman and a 45-year-old mechanical supervisor.

The pair were in stable condition and flown to a hospital in Kathmandu, according to the Associated Press.

The rescue operation at the site continued on Friday.

There were cheers as the two men emerged from the tunnels nine days after the devastating flood. Photos: Facebook

About 900 workers are missing from 12 hydropower projects in Nepal. Authorities believe about 500 are trapped in tunnels.

Australian geologist Arnold Dix, who is advising on the rescue operation, told CNN that the location of a tunnel least likely to have collapsed was narrowed down through satellite data, drawings of the power station and topographic information.

He said rescuers started digging through the debris, then found water, which had to be drained. Once inside the tunnels, they found their path blocked by enormous rocks.

“[The tunnel] was full of rocks the size of cars and mud and all the rest of it. So, we have to blow them up in the tunnel, which is incredibly dangerous because we’re in the tunnel, and there might be people on the other side,” Dix said.

“So we’re tunnelling along under the roof, and we know in our heads that underneath us are likely people who died. So there’s a whole lot of psychology and all of that.”

He described the operation as a dangerous and unprecedented attempt to identify buried tunnel entrances.

“It appears we now have proof of concept for a methodology to perform a rescue, because this is a world first,” Dix told CNN from Singapore, en route to Nepal.

“We’ve never done this before, and now we have a proof. And there’s other power stations we still haven’t got to.”

“Of course, we pause and celebrate. But it now also means we need to take a back step and go, ‘OK, of the 500 reasons we all thought we could fail, we’ve been able to prove one method that works. Now, how can we apply that somewhere else?’.”

Two more Australians found alive after flood disaster

Earlier, two more Australians where confirmed safe in the flood disaster, with grave concerns for the 36 still missing.

The two Australians, who had been uncontactable since last week’s catastrophic flooding, have confirmed they are safe and do not require consular assistance.

It brings the number of Australians found since the August 26 tragedy to seven, after five were confirmed safe on Wednesday.

Treasurer Jim Chalmers said the update would bring relief to their families, but the government remained concerned for those still missing.

“That would be a huge relief to the loved ones of these two Australians who have been located,” Chalmers said on ABC News Breakfast on Friday.

“But we still have very serious concerns for the 36 Australians that we haven’t been able to locate yet.”

More than 1200 people have died since the glacier collapse near Nepal’s border with Tibet triggered devastating floods across towns and valleys.

The three dozen Australians still missing are among more than 5000 people unaccounted for, according to the latest count from Nepali authorities.

The federal government has sent 19 officials and disaster response specialists to the region, with another 23 to be deployed within days.

On Thursday, Foreign Minister Penny Wong confirmed local authorities would search areas where many Australians were believed to have been staying. Teams from the Nepali army were expected to search target areas identified by Australia on foot, with helicopter and drone support.

“I can indicate that after our inquiries that Nepali authorities have advised us that searches are being conducted in the locations identified by Australia, including [The Kailash Hotel] and the Royal Himalaya Hotel, amongst others,” Wong said.

Australian drone operators and incident management specialists will leave for the region on Friday, as part of a broader on-the-ground support team.

The 15-person Australian Disaster Assistance Response Team will use advanced drone technology for real-time imagery and geospatial information and mapping of affected regions, where transport routes and critical infrastructure remain severely damaged.

The technology has AI capabilities that can help find victims, along with thermal imaging to identify trapped victims through heat sources.

The Department of Foreign Affairs and Trade is working with local authorities to establish the whereabouts and welfare of affected Australians and to contact next of kin where appropriate.

Nepali authorities will also be given telecommunication data to help narrow the last known location of missing Australians.

“We continue to work around the clock to ascertain as much information as we can and provide it to the families of missing Australians,” Wong said.

“We all hold on to hope, and we’ve got to hold on to hope.”

Aid supplies aboard a Royal Australian Air Force plane arrived in Kathmandu on Wednesday. It included more than 1400 hygiene kits, 2200 solar lights and phone chargers.

Australians have donated more than $4 million to the Emergency Action Alliance to support recovery efforts.

The federal government will provide a further $3 million to match public donations, bringing the ongoing humanitarian support package to a total of $11 million.

-AAP