German power electronics maker Semikron has been hit with a ransomware attack that partially encrypted the company’s systems.

In a short statement on its website Semikron said that the attackers claimed they have stolen data from the company and these claims currently are being investigated.

“With the support of external cybersecurity and forensics experts, we are conducting an investigation into the incident. At the same time, we are working to restore the ability to work in order to minimize disruption to our employees, customers and contractual partners and to ensure the security of our IT systems as best as possible,” the security notice reads.

Semikron has over 3,000 employees in 24 offices and 8 production sites worldwide across Germany, Brazil, China, France, India, Italy, Slovakia, and the United States.

The Nuremberg-based group has not disclosed what ransomware was involved in the attack. However, the tech news site BleepingComputer reported that the company appears to have fallen victim to an LV ransomware attacks, with perpetrators behind it claiming to have stolen 2TB worth of documents from Semikron.

Earlier this week, reports emerged of a AlphV ransomware attack on Creos Luxembourg, an operator of electricity networks and natural gas pipelines in the Grand Duchy of Luxembourg. The hackers reportedly have stolen 150 GB of data from the company.