Protesters to be arrested and held until April if they disrupt state-sanctioned marches . Iran is this week celebrating the 31st anniversary of the Islamic Revolution . Comment: The Iranian government has denied that its security forces killed anyone and has blamed reformists for the violence . The government has been cracking down on protests in recent years, but it's not clear how much that will affect these demonstrations. Reformist groups are urging opponents of the regime to stage non-violent protests .
Protesters to be arrested and held until April if they disrupt state-sanctioned marches . Iran is this week celebrating the 31st anniversary of the Islamic Revolution . Comment: The government has been cracking down on protests in recent years, but it's not clear how much that will affect these demonstrations. Reformist groups are urging opponents of the regime to stage non-violent protests .