Highly toxic arsenic stolen: Police warn of dangers in the Harz Mountains!

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In Osterwieck, Harz district, two liters of highly toxic arsenic trichloride were stolen during a break-in. Police warn of danger.

In Osterwieck, Landkreis Harz, wurden bei einem Einbruch zwei Liter hochgiftiges Arsentrichlorid gestohlen. Polizei warnt vor Gefahr.
In Osterwieck, Harz district, two liters of highly toxic arsenic trichloride were stolen during a break-in. Police warn of danger.

Highly toxic arsenic stolen: Police warn of dangers in the Harz Mountains!

A scandalous incident occurred in Osterwieck in the Harz district, Saxony-Anhalt: On the night of Tuesday, July 22, 2025, a factory was broken into and highly toxic arsenic trichloride was stolen. According to reports from NDR The perpetrators stole four bottles with a total of two liters of the highly dangerous substance. The police assume that the burglars were specifically targeting the arsenic trichloride, but so far there is no clear indication of their motives.

Around 200 emergency services, including specialized ABC teams, were deployed on Wednesday to secure the numerous sites. This also included alerting a special mobile laboratory to support the situation and quickly assess possible environmental risks. Fortunately, no injuries have been reported so far and the environmental impact in the region is considered to be low. According to the first material samples, there is no danger to soils and groundwater because the containers found were only damaged externally.

Containers with food not far from the factory

The police rule out a harmless “stupid boy prank” and continue to investigate in all directions. It is suspected that the perpetrators may have come into contact with the toxic material, which would endanger their own health. Of particular concern is the fact that arsenic trichloride is considered one of the most dangerous chemicals; just a few drops can be fatal. Arsenic is known for its health risks, ranging from skin diseases to nervous system disorders and cancer.

The alarm system of the affected company may have been manipulated, leading the police to believe that the perpetrators were well prepared. Overall, the incident remains a worrying event in the region daily news reported, and searches are continuing to recover the stolen material and identify possible suspects.