Vienna, July 23, 2026

Vienna police have warned the public about a series of apartment burglaries in which unknown perpetrators use nitric acid on door locks, with further incidents occurring in several Vienna districts between June and July 2026.

Criminal investigators with the Vienna police assume that the perpetrators are using nitric acid in the current burglaries — as in previous cases — to damage door locks and gain entry to apartments or houses. The theft investigation unit is handling the incidents and is asking the public to exercise particular vigilance.

In a release, police issued a direct appeal to the residents of Vienna: "Sollten Sie an dem Schloss Ihrer Eingangstüre Beschädigungen sowie eine Flüssigkeit vorfinden, vermeiden Sie unbedingt den Kontakt mit der Flüssigkeit", it stated. Anyone who notices such traces should call police immediately at the number 133.