Students clashed during a memorial ceremony for the victims of a deadly attack at a major Shia holy site in southern Iran, the country’s semi-official news outlet said Sunday. The Tasnim news agency reported that some groups attacked a gathering in a branch of Azad University in Tehran. Several students were injured, it said, quoting witnesses as saying some students had knives in their hands. Tasnim also said an unidentified person fired tear gas during the clash and then disappeared into the crowd. The report did not elaborate on how many people were injured in the clash. On Sunday, hardline…