In Germany, shrinking river reveals weapons-laden Nazi warships

Officials in Europe say that the shrinking Danube River has revealed multiple long-lost Nazi warships sunk during World War II, many of them reportedly still laden with weapons from the war. 

The Danube, Europe's second-largest river, arises in Germany and runs through multiple countries before emptying into the Black Sea. It was used often as a waterway by Nazi forces during the Second World War. 

Lower water levels in Serbia this month reportedly revealed the hulking forms of nearly two dozen Nazi warships, just one of several hundred that lie underneath the nearly 1,800-mile river. 

Officials warned that many of the ships are still laden with explosives from the war and could pose a hazard to boaters or explorers. 

A resident of the Serbian city of Prahovo told Reuters that the flotilla represents "a big ecological disaster that threatens us."