Sberbank's ATMs and payment terminals across the country will stop working for roughly 40 minutes Wednesday night while the bank upgrades its software.
Sberbank said in a statement on its website Tuesday that its ATMs and terminals would be out of order between 12:30 and 1:10 a.m Moscow time.
While its ATMs are offline, Sberbank will carry out planned works to upgrade the software used in its processing center, the bank said, apologizing for the inconvenience caused to its customers.
State-controlled Sberbank has the largest branch network of any Russian bank. As of July 1, 72.5 million Russians had Sberbank cards, 6.2 million of which were credit cards, Interfax reported.