According to the police chief, the arrests were made near Park Laleh in central Tehran.
According to an IRNA reporter, the situation in the capital is under tight control.
Tehran has been witness to a wave of riots since Tuesday following a peaceful gathering of university students who protested against the alleged privatization of universities.
He said that the government organs should uphold the procedure laid by the National Security Council in dealing with protests and gatherings.
Simultaneous with anniversary of July 9, the US along with counter-revolutionary radios and televisions have embarked on a plan to instigate the youth into violent acts, he said.
The US in collaboration with anti-revolutionary elements are working hard to attain their goals but they have been completely unsuccessful and there is no worry, he said.
He called for calm and said that the security apparatus will easily deal with the conspiracy.
Those being arrested in the demonstrations will be sent to the court of justice, he said.
He said that 109 arrests have been made in the past three days among whom there is no even a single student.
He said that the students are law abiding and described those under arrest as "hooligans".
"Those under arrest have nothing to do with the students. They had infiltrated into the ranks of the students for sabotage," he said.
Addressing the university students, the chancellor of Tehran university Reza Faraji Dana said that the officials are fully committed to the Constitution of the Islamic Republic.
"Trust in officials and never let the malevolent elements to find opportunity for violence", he stated to the students.
"We are concerned about the recent incidents in universities", he pointed out.
Police forces are responsible to restore security and protect the students and their properties, he said adding that they also should seriously deal with plain-clothes men and bikers.
Meanwhile, students of Khajeh Nasiredin Tousi also staged a sit-in protest in the campus of the university on Sunday afternoon to protest privatization of universities.
... Payvand News - 6/16/03 ... --