“When my father was moving towards Tehran University, many people were behind him and were asking him to defend their rights by chanting slogans but suddenly the anti-riot police in front of him shot bullets in the air so Mr. Karroubi asked the people not go any farther…At this point they (riot police) put my father in a car to take him to the University but when he was getting out of the car, a group of plainclothes attacked and insulted him in such a way that his turban fell off. They started cursing and using very foul language.”
Karroubi’s son expressed his disappointment at such a behavior and said “I was not able to get inside the University because of the crowd and as I was standing outside, I saw that the commander of the plainclothes forces was praising them for a job well done over his radio.”
Regarding a violent scene he witnessed on his way back home, Karroubi son said “I was very sad that I witnessed such scenes in the Islamic Republic.”
“On my way back home, I witnessed several plainclothes forces who had gathered around a Peugeot car…two of them were on top of the car and were destroying it and in the mean time I saw that passengers of the car were injured and blood was gushing towards the sky as if their wrists were slit and I was very sad to see this scene.”
update: the Guardian published this picture, which appears to show Karroubi after his turban was knocked off.