Photos: Search for the Nazi train treasure

Workers dig in an effort to find the so-called Nazi gold train in Walbrzych, Poland, on Aug. 16, 2016.

Workers dig in an effort to find the so-called Nazi gold train in Walbrzych, Poland, on Aug. 16, 2016.

Workers cut trees in the area of the 65th kilometer of the railway track from Wroclaw to Walbrzych during preparations to explore the existence of the so-called Nazi gold train in Walbrzych, Poland, on Aug. 12, 2016.

Workers set a fence around the area on the 65th kilometer of the railway track from Wroclaw to Walbrzych during preparations to explore the existence of the so-called Nazi gold train in Walbrzych, Poland, on Aug. 12, 2016.

Army experts use mine detectors to check for explosives in an area where, according to two explorers, a secret tunnel is hiding a World War II Nazi train with armaments and precious minerals.

Experts with an earth-penetrating radar check the area where, according to two explorers, a secret tunnel is allegedly hiding a World War II Nazi train with armaments and precious minerals in Walbrzych in southwestern Poland.

Polish military officials inspect the site where, according to two men, a World War II armored train is hidden in the ground in Walbrzych, Poland, on Sept. 4, 2015.

An evacuation tunnel under Ksiaz Castle in Walbrzych, Poland, that the Nazis built leads to massive shelters that are part of a giant system of tunnels and bunkers believed by some explorers to hold a gold train.

Journalists take a guided tour of Ksiaz Castle in Walbrzych, Poland, on Sept. 3, 2015. The tour was organized after claims an armored Nazi gold train had been discovered in the area.

A man stands by the rail tracks close to the location where a Nazi train carrying gold and treasures reportedly is hidden in a collapsed tunnel near Walbrzych, Poland, on Sept. 2, 2015.

A German tourist takes a picture of Ksiaz Castle in Walbrzych, Poland, on Sept. 2, 2015. In 1944 and early 1945 the Nazis were building bunkers for Adolf Hitler in the mountain under the castle and in other mountains around Walbrzych, a fact that has given rise to beliefs that they hid a gold train in one of the tunnels, while fleeing the Red Army. Two men claim they have located the train.

One of the underground passages built by the Nazis in southwest Poland during World War II in shown on Aug. 28. Treasure hunters claim to have located an armored Nazi train, possibly carrying valuables, in one of the tunnels.

Deputy Culture Minister Piotr Zuchowski said Aug. 28, 2015, that he has seen an image made by ground-penetrating radar that seemed to prove the discovery of an armored Nazi train missing in southwestern Poland since World War II, and is “more than 99 percent certain that this train exists.”

Polish Deputy Culture Minister Piotr Zuchowski, talking to reporters in Warsaw, about the rumored Nazi gold train, on Aug. 28, 2015, said he was “more than 99 percent certain that this train exists.”