TEHRAN, Iran — Iran has blocked access to the popular video-sharing Web site YouTube.com, and a media-rights group warned Tuesday that Internet censorship in the Islamic state is on the rise.
Internet users who tried to call up the YouTube site Tuesday were met with the message, "On the basis of the Islamic Republic of Iran laws, access to this Web site is not authorized" — which appears on numerous opposition and pornographic Web sites the regime blocks.
It was not known how long the site had been on Iran's Web blacklist. The Paris-based media rights group Reporters Without Borders said YouTube had been blocked for the past five days.
Iran's Shiite cleric-run government regularly blocks opposition Web sites, including blogs, and the number of sites that bring up the "unauthorized" message has been increasing over the past year. Western news sites, however, are generally available.
People are also reading…
Videos from the Mujahedeen-e-Khalq and other Iranian opposition groups have been posted on YouTube.com, along with videos posted by individual Iranians critical of the regime.
In its statement Tuesday, Reporters Without Borders warned that "censorship is now the rule rather than the exception" in Iran.
"The Iranian government policy is not an isolated case. It is getting closer and closer to that of … China, with particular stress being laid on censorship of cultural output," it said.

