Iran state television reports mass demonstrations over Charlie Hebdo's Prophet Muhammad cover

Iranian demonstrators burn representations of Israeli and U.S. flags during a rally against the satirical magazine Charlie Hebdo’s latest publication of a cartoon depicting the Prophet Muhammad, which some Muslims deem an insult to Islam, in front of the French Embassy, Tehran, Iran, Monday, Jan. 19, 2015. (AP Photo/Ebrahim Noroozi) (The Associated Press)

An Iranian demonstrator holds a satirical poster cover mocking the French weekly Charlie Hebdo which shows the Paris rally but adds a portrait of the Islamic State group's leader and self-proclaimed caliph Abu Bakr al-Baghdadi among the world leaders, during a protest in front of the French Embassy in Tehran, Iran, Monday, Jan. 19, 2015. (AP Photo/Ebrahim Noroozi) (The Associated Press)

Iranian state television is reporting mass demonstrations have taken place in several cities over the French satirical newspaper Charlie Hebdo depicting the Prophet Muhammad on its cover.

The state television report said the protests happened after Friday prayers, though it did not offer an estimate on how many people took part.

A Jan. 7 terrorist attack on Charlie Hebdo's Paris office killed 12 people. Many across the Muslim world have protested satirical weekly's first issue after the attack, which shows a drawing of a tearful Prophet Muhammad holding a sign saying "Je suis Charlie." Depicting the prophet in any fashion is taboo for many Muslims.

Last week, Iran condemned the "provocative" publication of the caricature, calling it an insult to Islam.