At least eight Iranian banks suffered widespread service disruptions on Tuesday, leaving customers unable to access many electronic and card-based services days after a separate outage affected four major banks.

Axar.az informs, citing Iran International, that services at Pasargad, Melli, Mellat, Sepah, Tejarat, Saderat, Tose’e Ta’avon and Resalat banks were severely disrupted on Tuesday with reports indicating that almost all services had become unavailable.

Some domestic media outlets also confirmed the disruptions. ILNA news agency reported that parts of Iran's banking systems had experienced outages and slowdowns since Tuesday morning.

The Informatics Services Corporation later pointed to cyberattacks as the cause of the latest problems.

“The Informatics Services Corporation has temporarily taken card-based services offline to prevent any unauthorized access and safeguard customers’ data and assets,” the company said in a statement.