The Iranian Foreign Ministry said the nuclear scientist killed in a bombing Tuesday was assassinated and the act "revealed signs of the involvement of the Zionist regime, the U.S. and their allies in Iran," state media reported.
Iranian seminary students and teachers, angered by anti-government protests earlier in the week, held their own demonstration Saturday to show support for the founder of the Islamic Republic, the semi-official Fars news agency reported.
Large crowds gathered in the Iranian capital Friday to march in an annual pro-Palestinian rally, among them thousands of green-clad supporters of the opposition movement, according to CNN sources in Tehran.
Iran's supreme leader delivered an impassioned defense of the Islamic Republic on Friday, insisting a majority of Iranians had faith in the existing establishment and issuing a "religious ultimatum" to protesters to end days of street demonstrations triggered by last week's presidential election.
A few dozen Iranians threw shoes at posters of U.S. President George W. Bush in Tehran Friday morning, a demonstration of support for an Iraqi journalist jailed for throwing his shoes at President Bush two weeks ago in Baghdad.
Reformist members of Iran's parliament have urged President Mohammed Khatami to postpone this month's parliamentary elections, saying the disqualification of thousands of candidates by Iran's clerical rulers makes a fair vote unlikely.