Nazi gold train: Polish treasure hunters begin detailed scans of hillside

Aerial View of Nazi Gold Train Search Site

WALBRZYCH, Poland -- Two treasure hunters began detailed tests Tuesday in the hope of revealing a fuller picture of a Nazi train they claim is buried in a hillside.

Piotr Koper and Andres Richter reignited decades of speculation in August when they announced they had located the train close to the town of Walbrzych, Poland.

According to local folklore, a train loaded with gold, jewels and weapons was hidden in a sealed tunnel by Nazi forces retreating from the advance of the Soviet Red Army in 1945.

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Nazi gold train: Polish treasure hunters begin detailed scans of hillside
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) A tunnel that is part of Nazi underground complex on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) A tunnel that is part of Nazi underground complex on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) Nazi era railroad tracks, which are believed to lead to the underground city beneath the Ksiaz Castle, on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged that the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67 km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
Policemen talk to a man at a road block between Walbrzych and Wroclaw, on September 28, 2015 where a rumoured World War II 'gold train' is searched. The area where the Nazi train is supposed to be hidden is now fenced and guarded and soldiers are preparing for searching as treasure-hunters claimed to have located two more Nazi built railway tunnels in southwestern Poland. AFP PHOTO / PIOTR HAWALEJ (Photo credit should read PIOTR HAWALEJ/AFP/Getty Images)
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Koper, a Polish national, and Richter, a German, have already produced what they say is a rudimentary image of the train using ground-penetrating radar.

But now the trees above the site have been cleared, and the Polish military has checked the site for explosives, the treasure-hunting pair were set to carry out three days of more detailed scans.

The works were originally planned for Monday but rain meant the tests had to be postponed until Tuesday.

"We already know, namely, that under the earth there is a train. We need three days of good weather to carry them out," Koper told a press conference Monday.

The pair will use a metal detector, ground-penetrating radar, and a magnetometer, which is used to detect whether objects have magnetic fields.

"Now that the area is cleared of scrub these studies will be much more accurate," Koper added.

Local officials have suggested that because of the annual winter snowfall in Poland digging may not start until the spring.

Arkadiusz Grudzień, a spokesman for the local magistrate in Walbrzych, said "at the moment, we are focusing only on noninvasive testing stage." It was "too early to talk about extracting anything," he added.

WATCH: Hidden treasure: The mystery of the Nazi gold train:

Hidden Treasure: The Mystery of the Nazi Gold Train

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