Today protests in Tehran continued in the face of threats from Revolutionary Guards that they would be cracking down on protesters. According to Associated Press security forces used tear gas against protesters and shot bullets into the air to try to break up the protests. The demonstration took place in Hafe Tir Square with the heavy presence of police and security forces. There were also helicopters circling the area. According to Al Jazeera news (English site) there were at least 1000 protesters in Hafte Tir Square today.