00:33 Hot Weather in Germany Unearthing WWII-era Explosives As hot weather in Germany causes water levels to drop in the Elbe River, World War II explosives are revealed.

At a Glance A persistent heat wave has lowered water levels so much on some German rivers, World War II munitions have been exposed.

At least 22 grenades, mines or other explosives have been found so far this year.

Germany has been exceptionally warm since April.

An ongoing heat wave in Germany has lowered water levels on numerous rivers, including the Elbe River, where dangerous World War II munitions have been exposed.

Police are warning against touching grenades , mines and other possibly live explosives exposed in areas that were once battlegrounds in the eastern German states of Saxony-Anhalt and Saxony during World War II, Deutsche-Welle reports.

Saxony-Anhalt police spokeswoman Grit Merker told the newspaper at least 22 grenades, mines and other explosives have been found so far this year.

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com/util/image/w/elberiver_1.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com/util/image/w/elberiver_1.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com/util/image/w/elberiver_1.jpg?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > A view of the dried out riverbank of Elbe in Magdeburg, eastern Germany on July 26, 2018. (Tobias Schwarz/AFP/Getty Images)) (Tobias Schwarz/AFP/Getty Images))

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On Saturday, two live anti-tank mines were found and detonated in the Elbe.

Police said they are aware of people deliberately searching for buried munitions.

“This is forbidden and dangerous ,” a spokesman told the Telegraph. “Any finds should not be touched. It’s better to inform the authorities immediately.”

It's estimated that 2.7 million tons of bombs were dropped on Germany by Allied Forces during the war. More than 2,000 tons of unexploded munitions are uncovered in Germany each year.

The German national weather agency said unusually warm temperatures began in April , the warmest April on record. May was also a record-breaker, while June and July remained exceptionally warm. July was the driest in 60 years and the fourth-warmest on record, tying 2010. During the last week of July, many areas topped 95 degrees Fahrenheit.

Water levels have fallen to 21 inches in Magdeburg, the capital of Saxony-Anhalt. The record-low level stands at 18 inches, recorded in 1934.

Dry conditions will prevail in Magdeburg through early next week, with temperatures approaching 90 degrees on Saturday, says weather.com meteorologist Linda Lam. Cooler temperatures are expected Sunday and Monday before the heat returns midweek.