More than two dozen Iranian journalists are among the hundreds of people being imprisoned by the hardline government in Tehran as part of the violent post-election crackdown, says Amnesty International.

The human rights group said Friday as many as 30 journalists remain in detention. It calls the arrested reporters "prisoners of conscience."

Mass gatherings have waned into scattered protests as the Iranian clergy that rules the country tightened its repression of opponents since the bitterly disputed election.

Foreign news journalists have been banned from the streets, and some foreign reporters have been expelled from the country.

Two journalists reporting for foreign news outlets have also been arrested. The group said they are Maziar Bahari, of Newsweek, and Iason Athanasiadis-Fowden, of the Washington Times.