The German military is investigating potential sabotage at the Cologne-Wahn Air Base after unusual water readings and a suspicious individual were reported near the waterworks.

A hole in the perimeter fence has raised concerns about possible contamination of the base's drinking water.

Authorities, including police and military intelligence, are conducting thorough investigations, with initial water test results expected soon.

Meanwhile, the base is relying on water canisters for supply.

In a related incident, a cut fence at a water reservoir in Mechernich prompted warnings about potential water contamination, affecting 10,000 residents, including a Bundeswehr site.

Although initial tests showed no chemical or biological threats, residents are advised to boil water before consumption.

These incidents have heightened security measures and prompted calls for reviewing protection strategies at military sites.