US warns 'world is watching' protests in Iran

Iran's government warned citizens Saturday against holding "illegal" public gatherings, following two days of rare anti-government protests which spread to a number of cities.

The protests -- described as the largest public display of discontent since the 2009 Green Movement in Iran -- have emerged against a backdrop of rising food and gasoline prices.
Three students were arrested in unrest outside Tehran University on Saturday, an official with the Ministry of Science told Iran's semi-official Iran Labor News Agency, ILNA. Two have since been released, it said.
The demonstrations began Thursday in the northeastern city of Mashhad before spreading to cities across the nation on Friday. They included Tehran, Kermanshah, Arak, Qazvin, Khorramabad, Karaj and Sabzevar, according to First Vice-President Eshaq Jahangiri, cited by official news agency IRNA. Iranian media outlets reported a number of arrests.