The Geilenkirchen Airbase, located in the federal state of North Rhine-Westphalia in western Germany, has been closed due to suspicions of possible sabotage.

According to Report, which cites TASS, the airbase has also seen its barracks shut down as a precautionary measure.

A representative from the territorial command confirmed that the barracks were closed and an investigation is underway to determine if the base’s independent water supply has been contaminated.