Yandex suspended operations at one of its key data centers on Thursday after a drone strike, as Ukraine continues to target the country’s infrastructure, according to CNBC.

The attack caused a fire at the company’s data center in Sasovo, in western Russia’s Ryazan region, and affected part of its infrastructure, Yandex told CNBC. Open-source intelligence (OSINT) groups Exilenova+ and ASTRA identified the site as Yandex DC Sasovo, which the company describes as its largest data center, according to the Kyiv Independent.