ZAGREB, Croatia — Officials said the body of a man wearing military clothes was found in a drinking water tank in Zagreb, Croatia, according to United Press International.

Radio Television of Serbia reported that the man was wearing a military uniform and a backpack filled with rocks, while investigators also found a rifle in the water tank.

The head of the local waterworks, Josip Kasnar, said the water started tasting strange about 10 days before the body was found, noted the article.

Tests are being conducted by health officials to see if the water is safe to drink.

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