A German military base was sealed off for several hours Wednesday as authorities investigated suspected sabotage while a NATO airbase in the country faced an attempted trespassing incident, officials said.

The Bundeswehr base in Cologne-Wahn was locked down because of “a suspicion of an attempted intrusion and a suspicion of sabotage,” defence ministry spokesman Colonel Arne Collatz told reporters in Berlin.

A hole was discovered in a fence near drinking water storage facilities, the military’s territorial command said on X.

The perpetrators had not been found and the site’s water was being…