Home
Discover Islam
Quran Recitations
Lectures
Fatwa
Articles
Fiqh
E-Books
Women
Boys & Girls 
Ramadan
Fatwa Audios
Month of Mercy
Women
Eed Al- Fitr
Food Recipes
Videos
Iranian riot police and Revolutionary Guard members armed with tear gas, batons and firearms have surrounded Tehran University, witnesses have said.
The move comes amid fears that the anti-government movement would use the occasion of Student Day on Monday to stage mass protests.
"There are hundreds of riot police, everywhere around Tehran University and nearby streets," a witness said.
Another witness told Reuters news agency that dozens of plainclothes security forces had gathered in a northern Tehran square.
Clampdown
Foreign journalists were ordered to remain in their offices and Tehran residents said internet access, including to email and websites loyal to the political opposition had been limited.
Student Day marks the killing of three students at an anti-US protest in 1953 under the former Shah. It has also served as an occasion for protests calling for increased social and political freedoms since the 1990s.
Several websites had urged people to gather near the Tehran University campus on Monday, but security forces vowed to prevent any "illegal" rally or any attempt to use the event to stage opposition protests.
However, the official news agency IRNA issued a report saying that the opposition movement would fail to gather support on Student Day and described it as the "last nail of the coffin" of the protests which followed the disputed June 12 election.
Alireza Ronaghi, Al Jazeera's correspondent in Tehran, said: "The students have been blogging and sending messages over the internet, saying that they will gather. Maybe that's why the government is a little bit worried about today."
Hundreds of thousands of people demonstrated in June in the wake of the re-election of Mahmoud Ahmadinejad as president, claiming that the Iranian authorities had rigged the vote.
Dozens were killed in clashes with security forces and hundreds more were detained by the authorities.
Mousavi message
Mir Hossein Mousavi, the main rival to Ahmadinejad in the elections, said on his website that the reform movement was still alive despite pressure from the clerical establishment.
"Let's say you suppressed students and silenced them. What will you do with the social realities?" his Kaleme website quoted him as saying, referring to wide arrests of students in Tehran and other cities in the past few days.
"You [the authorities] do not tolerate the student day rallies. What will you do on the following days?" Mousavi said, suggesting that street-protests will continue.
Following the restrictions on the media, Akbar Hashemi Rafsanjani, a former Iranian president and opposition member, criticized the country's rulers of being intolerant of dissent.
"The situation in the country is such that constructive criticism is not accepted," he told students in the northern city of Mashhad on Sunday, the ILNA news agency reported.
"Those who demonstrate or protest must express themselves through legal means. Leaders must also respect the law."
Rafsanjani called on Iran's political groups to work together to "create a climate of freedom which will convince the majority of people and erase ambiguities".
PHOTO CAPTION
Iranian opposition demonstrators run away from riot police during a protest in central Tehran in November.
Al-Jazeera
Prayer Times
Prayer times for Doha, Qatar 
