Through a tumultuous day of street rallies,Through a tumultuous day of street rallies, police were often on the sidelines as protesters faced off against huge crowds of pro-government supporters -- many of them bused in from outside the cities. Many of the opposition protesters wore green in support of Mir Hussein Moussavi, the runner-up in the June elections.

st huge crowds of pro-government supporters -- many of them bused in from outside the cities. Many of the opposition protesters wore green in support of Mir Hussein Moussavi, the runner-up in the June elections.

Photo: Caren Firouz/Reuters

Mohammad Khatami, center, a former Iranian president, is attacked as he attends a Quds Day rally