THE TELEGRAPH: Iranian police fired tear gas and live bullets as they fought back thousands of unarmed protesters on the streets of Tehran.
There were bloody clashes as young people launched a fresh wave of anti-government protests on the country's official Students Day.
Police used warning shots, baton charges and gas but failed to stop rallies, sit-ins and campus marches across the capital.
Universities in several cities, including Tehran's top seats of learning, were sealed off as guards checked identity cards of people trying to join the student demonstrations.
Earlier in the day, the authorities detained 23 members of a protest group of grieving mothers. They included the mother of Neda Agha-Soltan, known as the "Angel of Freedom", who was shot by pro-government militia at the height of demonstrations against Mahmoud Ahmadinejad's re-election in June.
Hajar Rostami-Motlaq has enraged the authorities by condemning pro-government students who accused British agents of killing Miss Soltan.
She was later released but friends expressed concern for other members of the protest group, Mourning Mothers of Iran, who were rounded up at a weekly protest in Tehran's Laleh Park.
Supporters of opposition leader Mirhossein Mousavi chanted "Death to the dictator" and "Do not be scared. We are all together", according to witnesses at the rallies on university campuses. >>> Damien McElroy, Foreign Affairs Correspondent | Monday, December 07, 2009