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An international human rights group says Saudi Arabia's government is harassing and jailing activists, often without trial, for speaking out in favor of expanding religious tolerance in the kingdom and other rights.

The New York-based Human Rights Watch also says in its World Report 2011, released Monday, that new restrictions on electronic communication in the kingdom were severe.

Under the rules, operators of news websites, discussion forums, blogs, personal websites or those publishing information via mobile phone text messaging or group e-mails will require a government license.

On religion, the predominantly Sunni Muslim kingdom bars the smaller Shiite community from practicing its rituals.