Iran has blamed foreign countries, including Israel, for a cyber attack on its semi-official Fars News Agency, which is affiliated with the country’s Islamic Revolutionary Guard Corps, AFP reported on Saturday.

Fars said in a statement posted to Telegram that its website was disrupted on Friday by a “complex hacking and cyberattack operation, and that “removing possible bugs… may cause problems for some agency services for a few days,” according to the report.

Cyber attacks are carried out against Fars “almost daily” by various countries, “including the occupied territories [i.e. Israel],” the statement continued.

Iran International reported on Saturday that a group called Black Reward claimed responsibility for the attack, which allegedly deleted nearly 250 terabytes of data from the Fars servers.

The group also reportedly leaked direct communications between the agency and Iranian Supreme Leader Ali Khamenei, as well as compromising the news agency’s security camera footage.