Tuesday’s attack “technically” resembles two previous incidents whose perpetrators “were unquestionably our enemies, namely the United States and the Zionist regime”, the Revolutionary Guards’ Gholamreza Jalali said.

“We have analysed two incidents, the railway accident and the Shahid Rajaei port accident, and we found that they were similar,” Jalali, who heads a civil defence unit responsible for cyber activity, told state television late Saturday.

In July, Iran’s transportation ministry said a “cyber disruption” had affected its computer systems and website, according to Fars news agency.