Some images are getting out of Tehran, despite the ban on foreign journalists being allowed to cover demonstrations which are continuing. Getty Images is no longer identifying the photographers taking the images.
The BBC is able to get information out by using Iranian journalists:
Bob Collins has been with Minnesota Public Radio since 1992, emigrating to Minnesota from Massachusetts where he was vice president of programming for Berkshire Broadcasting Company. Previously, he was an editor at the RKO Radio network in New York, and WHDH Radio in Boston. He was the founder of MPR News’ website.