Iran’s state-owned banking technology provider says that cyberattacks have disrupted card-based banking services at Bank Melli, Bank Saderat and Bank Tejarat, Reuters reports.

This has prompted a temporary suspension of all card-related operations at the three banks to prevent further unauthorised access, the Informatics Services Corporation tells state TV, with cybersecurity teams working to restore normal operations.

The company’s public relations head said ATM services, point-of-sale terminals and mobile applications linked to card systems were all affected.

Iranian state media cites the central bank as saying that the latest problems should be resolved by Wednesday morning and all services would then return to normal.