Treasure hunters scouring the woods above the tunnel where the Nazi train is said to be hidden have claimed to have found a Nazi Eagle, gold coins and other WWII memorabilia which they say is 'proof' it may really be packed with priceless jewels.

The local two men, who refused to be named, recovered the 'treasure' from the hill in Walbrzych, Poland, which has become the centre of fevered speculation over the last two weeks, ever since it was revealed two men had 'discovered' a Nazi train hidden in a secret tunnel underneath it.

They showed MailOnline pictures of coins, a German helmet and a Nazi Eagle they found at the site, adding: 'There is still a lot of treasure like this lying around. If that train is in the tunnel, it could well contain more of this, a lot more.'

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Evidence: Treasure hunters have shown MailOnline a series of items they claim were discovered around the site where the gold train is supposedly hidden - including this Nazi Eagle

Haul: They say coins like these could be just a fraction of what is hidden in the tunnel

Spotted: The Polish authorities have poured fuel on the fire by saying they have now seen proof of a 100 metre train under the hill which left them '99 per cent' convinced it really does exist. But doubts now persist

Tales: There are many legends about the tunnels which stretch out under the Ksiaz castle, and some locals are dismissing the latest excitement as just another storm in a teacup over nothing at all

To the casual observer their pictures are hardly concrete evidence that under the earth there lies the find of a century; an armoured train that could be filled with gold, jewels, priceless artwork or even the plundered walls of a £250million ornate Amber Room stolen from a Russian palace.

But such is the excitement that has surrounded Walbrzych ever since it emerged the men had lodged a claim for 10 per cent of the loot, that people are willing to overlook the fact it is not unusual to find Nazi items in an area where they once had their headquarters.

Even the Polish government poured fuel on the fire, with one minister saying they were 99 per cent certain the train was hidden under a hill.

Poland's Deputy Minister of Culture, Piotr Zuchowski described the find as 'unprecedented', adding: 'We do not know what is inside the train.

'Probably military equipment but also possibly jewellery, works of art and archive documents.

'Armoured trains from this period were used to carry extremely valuable items and this is an armoured train, it is a big clue.'

It sparked a frenzy with treasure hunters as far away as Japan descending on the area. With a fear that there are still booby-traps in the area left by the Nazis and that people may be tempted to start digging for the so-called treasures themselves, authorities have now closed off the 4km site.

And when MailOnline visited the site yesterday, burly plainclothes operatives were spotted setting up sophisticated monitoring equipment near an unmarked black van sitting next to the location identified by a town council source - said to be '200 metres away' from the official from the site where the Nazi gold train is believed to be hidden.

Abandoned: Finds like this helmet could just be what was left behind when the Nazis fled in 1945

History: It probably isn't surprising that coins from the Third Reich are in the area, considering the regime set up its local headquarters at the castle, even preparing for a visit from Adolf Hitler

Secret service: Government agents in a blacked out van were at the site seen setting up sophistacted monitoring equipment to keep out prying eyes ahead of military investigations into what is inside the tunnel

Investgiation: But the authorities seem to be taking the 'discovery' increasingly seriously, and have set up new equipment to look into the ground - albeit two kilometres from where they officially say the train is hidden

Closed: Meanwhile, treasure hunters are being ordered to keep out of the area - ostensibly for their own safety

Doubt: Experts have pointed out it is very difficult to see anything clearly with a ground penetrating radar, as this example - looking just two metres underground - apparently proves

One of the officers then came over and ordered: 'Get away from here. The whole area is sealed. Go now and don't come back. Stay away.'

It is unclear whether the equipment was just CCTV to keep out prying eyes, or whether it was the start of official attempts to investigate what is inside the now-fabled tunnel.

But it seems they aren't in a huge rush either: digging for the Nazi gold train won't begin until spring, an official told local media today.

A military spokesman told RMF FM radio that soldiers would not be moving into the area until after military experts had carried out a survey of the location where the train is said to have disappeared.

He added that if the experts found something then specialised units would be brought in to begin excavation work, but that this was unlikely to happen until early Spring.

In recent days, local authorities have shown they are less convinced and experts have called on them to 'end the madness' and start excavation work immediately.

Mayor of Walbryzch Zygmunt Nowaczyk noted the only thing he had seen was 'an old map' and a letter – hardly rock solid proof.

'This is not the first and probably not the last such claim about an unusual discovery in our area,' he said. 'Walbrzych and Lower Silesia are full of secrets.'

The tunnels themselves have always been the stuff of legends: no one knows quite why they were built.

Local lore says Nazi Germany ordered the vast underground network, which snakes around the massive Ksiaz Castle, be built to hide Third Reich valuables, V2 bombs and even Hitler himself - or, even more unlikely, evidence of UFOs.

The train was one small aspect of the stories, tales which emerged in the dying days of the Nazi invasion.

Some say there is more than one, claiming three went into a tunnel one night, never to be seen again.

Fenced off: Police are now guarding the site, which has been inundated by treasure hunters from all over

Expert: Walbrzych resident Tadeusz Slowikowski has been hunting for the mysterious Nazi gold train ever since he first heard of its existence back in the 1950s, from a man he rescued from being attacked. Here he shows a picture of where he believes the the tunnel entrance used to be

Murdered: Slowikowski claims this family were shot dead by the Nazis because they saw them hiding the train

Discovery: The train is said to be hidden under this forest in southern Poland - and people are now calling on the authorities to dig it up once and for all, to stop people flooding into the area

Fame: There is even a song dedicated to the train, courtesy of Edyta Nawrocka, 28, who was born in Walbrzych

They could, it is said, contain treasures stolen from the Jews murdered by the regime during the Second World War, precious artwork from the great galleries of Europe - or secret Nazi documents.

It has also been suggested it could hold the Amber Room, which has not been seen since 1945 - four years after Nazi soldiers looted it from a palace near St Petersburg.

The legends do not stop in 1945, however.

Tadeusz Slowikowski, who has devoted decades of his life to the hunt, even building a replica of the entrance in his Walbrych home, believes a family was murdered who lived near the tracks after they saw the Nazis hiding the train.

Slowikowski claims his dog was poisoned by Polish secret services when he got too close to digging the train up in the early 2000s.

Others claim they have had mysterious and threatening phone calls, telling them to keep away.

It is enough to tempt even the most level-headed of treasure hunters, including the two men who meet MailOnline in a coffee shop to show off their finds.

Presenting photos as evidence of what they had found in the last few weeks, one of the men said: 'We found all this very close to where the train disappeared.

'We don't know how valuable it is, but some are definitely gold. It stands to reason that there could well be a lot more of this still undiscovered.'

In one photo, a gold coin of uncertain origin is seen lying in one of the finders' hands.

Another reveals an old German helmet lying on some ageing railway tracks, while a third shows a collection of coins and medals.

The finds were hardly on the scale that is being talked about in connection with the mysterious missing train, but it is unlikely to dampen the gold-rush fever anytime soon.

The train even has its own song, courtesy of local pop star and TV celebrity Edyta Nawrocka, 28, who was born in Walbrzych.

Different kind of treasure: There is some speculation it may not be gold inside the train, but pieces of art - and even the long-lost Amber Room, stolen from Russia in 1941, which has not been seen since 1945

HOW AN AMBER CABINET BECAME THE AMBER ROOM The Amber Room was originally just a cabinet, given as a gift to Peter the Great The Amber Room was originally supposed to have been an amber cabinet, a gift from Friedrich-Wilhelm I of Prussia to Peter the Great, who admired the work on a visit to his castle in 1716. But instead of a cabinet, it was decided to use the panels as wall coverings, surrounding them with gilded carving, mirrors and yet more amber panels. In total, the room used 450kg of amber, and was finally completed in 1770. The room was so fragile it had a permanent caretaker, and when the Russians tried to hide the crumbling walls behind wallpaper. But the Nazis knew what was behind the mundane covering, and went about dismantling the room - a process which took 36 hours. They believed, as a Prussian gift, it belonged to them. But the room, taken back to the castle where it had originally been created for Friedrich-Wilhelm, was never seen again after 1945. Some claimed it had been destroyed in the bombings, but others say the panels were spirited away by the Nazis keen to keep hold of their loot. But the Russians weren't willing to give up on this crowning glory, and began a replica in 1982. It took more than 20 years and cost more than $12million, but visitors to the Catherine Palace, near St Petersburg, can now see the grand room for themselves. Sources: Catherine Palace and the Smithsonian Advertisement

Disappeared: Some suspect the spectacular wall coverings were whisked away by the Nazis as the Red Army marched on East Prussia (pictured: the replica Amber Room)

The 39 second clip shows her holding a microphone as she looks into the camera and warbles 'The train comes from far away and the gold is dripping from it' to an old classic Polish melody.

Businesses are certainly making the most of the situation - not least the 13th century castle itself, under which some of the tunnels are believed to be.

It is now advertising special tours to the city's underground tunnels, with the tours' logos emblazoned a sparkling steam train.

Manager Krzysztof Urbanski said visitor numbers were on the up, thanks to the 'Loch Ness' effect.

'I don't have any concrete evidence to show the train exists, but reliable sources have confirmed it to me and I would love for it to be true,' he said.

'No one's seen the monster but that doesn't stop it from attracting people.'

Hotel barmaid Kasia, 25, said: 'We have never seen so many visitors to our town. It is amazing. People from all over the world are coming here, spending money and enjoying what we have to offer.

'The place has gone tunnel crazy. It's great.'

Others are less convinced it is 'great', and even less convinced the train ever existed in the first place.

They are pressuring the government to reveal what it knows amid claims made in a German newspaper that the Culture Ministry was made aware of the find in March.

Local man Darek, 36, told MailOnline: 'Why won't they show us the evidence? If they have seen the photos and the proof, tell us. The papers have been full of speculation but now it's time to show us what they know.'

Many in Walbrzych - and across the world - have gone further, pointing out the entire thing would be resolved very quickly if someone just dug it up.

Rumours: Local legend says three armoured trains disappeared under the hill never to be seen again in 1945

Boom: Ksiaz is welcoming more visitors than ever, thanks to the tunnels underneath the 13th century castle

Lawyer Piotr Lewandowski, of the Thesaurus Foundation, which specialises in the legal protection of heritage sights, was clear about his feelings when told local radio: 'It is time to break this madness.

'And now, rather than in two or three weeks time because the government is beginning to look like a joke.

'First, they actually have to check the credibility of all this information, and secondly, if it turns out that such an object is there, get involved.

'Otherwise it's just dreaming of great treasures and then finding out that there are just, for example, factory documents.'

The gold rush has come with its own problems: signs have been put up around the site telling people to keep out, for fear the tunnel could be booby-trapped with mines laid 70 years ago.

'Half of Wałbrzych's residents and other people are going treasure hunting or just for walks to see the site. We are worried for their security,' said police spokeswoman Magdalena Koroscik.

People walking down the tracks could not escape 'a train that emerges from behind the rocks at 70km/h [43mph]', she said.

A man taking a selfie on the tracks reportedly narrowly missed being hit.

For some, a fire which broke out near the location of the track was the last straw when it was dubbed 'mysterious' and thought to be linked to the train.

Cafe worker Magda said: 'When it 37C like now there are lots of fires in the forest. It was probably a treasure hunter who dropped his cigarette, rather than deliberate arson.

'But now anything that happens there is treated as part of the mystery.'

Danger: The proximity of the train to the tracks is worrying police, who fear gold hunters may be killed

Safety first: Guards are even patrolling the tracks to ensure people are not injured

And questions are also beginning to be raised about the quality of the evidence presented by the two men who claim to have found the secret location of the Nazi gold train - especially the reliability of the Ground-Penetrating-Radar (GPR) used to detect the train.

MailOnline has seen the quality of the images produced by GPR and they show nothing more than a set of blotchy colours.

Jacek Adamiec from the Association for the Exploration and Rescuing of Monuments told local TV: 'In my opinion to get an accurate reading of objects so far down is very unlikely.

Professor of Applied Geophysics from the University of California at Berkley, James W Rector said: 'Any competent geophysicist would have examined the near surface conductivity of the rocks. I believe (very cursory) that GPR wont work here and the 'image' is bogus.'