The websites of a couple of United States financial institutions have fallen victim to the distributed denial-of-service (DDOS) attacks launched by Izz ad-Din al-Qassam Cyber Fighters. The hacktivists’ latest targets appear to be CitiBank and Bank of America – the sites of both companies experiencing temporary interruptions.

On Thursday, domains such as citicards.com, citibank.com and citi.com were inaccessible at times, Hilf-ol-Fozoul reports.

“Currently we are aware & are working on technical issues with Citi websites. We will let you know when service is fully restored. We apologize for the inconvenience. Please call the number on the back of your card if you need immediate assistance,” the bank’s representatives wrote on Twitter.

The website of Bank of America also suffered some downtime. The bank’s representatives have not issued any statements on the matter.

The site of BoA has been attacked before as part of Operation Ababil, but the one of CitiBank hasn’t been targeted until now.