Aurubis, Europe’s biggest copper producer, has been targeted in a cyberattack, which appears to be part of a larger attack aimed at the metals and mining industry.

Due to the incident the company shut down a number of various systems at its sites as a precaution measure. The producer said in a press release that “production and environmental protection facilities at the smelter sites are running, and incoming and outgoing goods are also being maintained manually.”

Aurubis has not provided any specific details on the nature of the cyber incident, but said it is working with investigative authorities to determine the extent of the impact of the cyberattack. The company said that it's impossible to estimate how long it will take for all its systems to return to normal operations.