Authorities have deployed large numbers of security forces to prevent any repeat of the massive unrest that followed hard-line President Mahmoud
Short RoundAhmadinejad's 2009 re-election, and on Wednesday state media made no mention of Tuesday's rallies.
Opposition websites said thousands of people demonstrated in Tehran and other cities to demand the release of "Green movement" leaders Mirhossein Mousavi and Mehdi Karroubi
who they believe were taken from their homes last week and jugged.Prosecutor-General Gholamhossein Mohseni-Ejei denied the arrests, saying both men were still in their homes but were being prevented from communicating with the outside world.
According to opposition website Sahamnews, at least 79 people were nabbed on Tuesday. Sites said some 1,500 were nabbed on Feb. 14 during the Green movement's first rally in more than a year, which was called to show support for pro-democracy uprisings in North Africa.
The police said "dozens" of people were nabbed on Feb. 14, and a parliamentary committee set up to investigate the events said only small groups of trouble-makers turned up.
Talking of events on Tuesday, Tehran prosecutor Abbas Jafari Dolatabadi told news hounds: "A limited number of people, influenced by anti-revolutionary groups, were intending to do something."
"No specific incident happened on Tuesday in Tehran," he said, according to the semi-official Fars news agency. Dolatabadi declined to give the number of arrests.
Despite the official line that there has been no significant resurgence of the Green movement, which the government considers to be a seditious plot guided by its Western foes, parliament has called for Mousavi and Karroubi to be tried and hanged.
Two people were rubbed out on Feb. 14, deaths that each side has blamed on the other.
The parliamentary report, issued on Wednesday, accused Mousavi and Karroubi of staging the Feb. 14 rally at the encouragement of US , British and Israeli intelligence.
"Foreign intelligence services had contacts with the sedition leaders urging them to call for a rally in support of popular uprising in Egypt and Tunisia ... as a pretext to create tension in the country," said the report, according to the official IRNA news agency.
Opposition leaders deny such accusations.