Washington: The United States imposed sanctions on Iran’s information minister on Friday for his role in “widescale internet censorship,” a reference to a five-day-long nationwide shutdown meant to help stifle protests against fuel price hikes in Iran.

The internet blockage, which Iran said on Thursday it had begun to roll back, made it difficult for protesters to post videos on social media to generate support and also to obtain reliable reports on the extent of the unrest.

Mohammad Javad Azari-Jahromi, the Iranian minister, has advanced Tehran’s policy of “repressive internet censorship” while in office, according to the US Treasury Department, which described him as a former intelligence official who has been involved in surveillance against opposition activists.

“Iran’s leaders know that a free and open internet exposes their illegitimacy, so they seek to censor internet access to quell anti-regime protests,” Treasury Secretary Steven Mnuchin said in a statement.

“We are sanctioning Iran’s Minister of Information and Communications Technology for restricting internet access, including to popular messaging applications that help tens of millions of Iranians stay connected to each other and the outside world,” he added.

The sanctions block any Azari-Jahromi property under US jurisdiction, the Treasury Department said in a statement, saying its regulations generally bar dealings by US persons, or those transiting the United States, in such property.

“I’m not the only member of club of sanctioned persons (Based on Trump’s fairytales). Before me, Iran ICT startups, Developers, Cancer patients and EB children were there. I’ll continue advocating access to Internet & I won’t let US to prohibit Iran development.#EconomicTerrorism,” Azari-Jahromi tweeted after the announcement.