A severe drought in Europe has caused water levels to drop to the point where a previously submerged complex of Roman ruins is now visible.

The ancient Roman complex that began as a military camp when it was first constructed in 75 AD along the Lima River in the Galicia region of Spain is visible after being abandoned centuries ago and fully submerged after the construction of a dam in 1949, The Charlotte-Observer reported.

The complex, known as Aquis Querquennis, housed up to 600 Roman soldiers in its heyday and consisted of multiple barracks, two granaries, a hospital, a temple, and thermal baths. 

The full complex became visible, along with the ruins of other abandoned towns, once water levels at the As Conchas reservoir fell to 49% capacity as the continent continues to struggle with a historic drought.

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Drone footage posted on Friday by Faro de Vigo showed large swaths of the complex that are now visible due to the lowered water levels. 

Almost half of the 27-nation European Union is under drought warning, with conditions worsening in Belgium, France, Germany, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Portugal, Romania and Spain. The report also noted rising drought hazards outside the EU, in Britain, Serbia, Ukraine and Moldova.

"Warmer and drier than usual conditions are likely to occur in the western Euro-Mediterranean region in the coming months till November 2022," notably in Spain and Portugal, the EU’s Copernicus program said in a report for the month of August.

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Water shortages and heat stress are also reducing European crop yields, with maize, soybeans, and sunflowers hardest hit. Recent rainfall in August has helped some regions, but crops in other areas have been battered by thunderstorms.

The report comes amid what experts say could be the continent’s worst drought in 500 years. 

Associated Press contributed to this report