A third Yandex data center in Russia was hit by Ukrainian drones over the weekend, forcing it to shut down and causing further disruptions to cloud services, payments, deliveries and other online services across the country.

The latest attack, overnight Sunday, targeted a Yandex facility in Vladimir, following strikes on two other data centers in the Ryazan and Kaluga regions earlier last week.

“The data center has shut down completely, and the remaining infrastructure is unstable. The platform is operating in emergency mode,” Yandex said in a statement.

Over the past week, Ukrainian drones targeted three of Yandex's six data centers in Russia, forcing two facilities to shut down completely and damaging infrastructure at the third.

The first attack occurred overnight October 7-8, when drones struck a Yandex data center in Sasovo, in the Ryazan region, sparking a fire and forcing the company to shut down the facility. The site, which opened in 2014, reportedly houses two of Yandex's three supercomputers used to train artificial intelligence models.