The website of Iran's transport ministry was taken down on Saturday by what state television said was a "cyber disruption", a day after an apparent cyberattack on the state railway company.
Computer systems of the staff of the Ministry of Roads and Urban Development were the subject of the attack which resulted in the ministry's portal and sub-portal sites becoming unavailable, the TV channel reported.
It didn't give any indication of who it believed could have been behind the attack and did not say if any ransom demand had been made.