Police Surround Tehran University to Stop Protests

TEHRAN, Iran (AP) -- Thousands of riot police and Revolutionary Guard members armed with tear gas, batons and firearms were deployed Monday outside Tehran University to prevent student demonstrations backed by the opposition.

'Gunfire heard' as Iran police clash with protesters

Iranian security forces have clashed violently with opposition supporters in central Tehran, witnesses say.
Police used batons and tear gas, according to the witnesses. There were also unconfirmed reports of security forces using live rounds.
State media confirmed there had been clashes, though a foreign media ban means details cannot be verified.