An Iranian-American journalist held in her native country for months and accused of security-related offenses was permitted to leave Iran, her employer said Tuesday.

Prague-based Parnaz Azima, who works for a Persian service for the U.S.-funded Radio Free Europe/Radio Liberty, arrived in Tehran on Jan. 25 to visit her sick mother.

Authorities seized her Iranian passport, and in May she was charged with security-related offenses.

"Parnaz Azima collected her passport from authorities today and told Radio Farda she would leave Iran in the near future," the radio station said on its Web site Tuesday.

It was not clear what prompted the decision. On Sunday, an Iranian-American academic, Haleh Esfandiari, was allowed to leave Iran after spending months in a notoriously harsh Tehran prison.

Iran has also charged two other Iranian-Americans with security-related offenses: Kian Tajbakhsh, an urban planning consultant with the Soros Foundation's Open Society Institute; and Ali Shakeri, a founding board member of the Center for Citizen Peacebuilding at the University of California, Irvine.

Unlike Azima, Shakeri and Tajbakhsh are in prison.

A lawyer for Azima as well as Esfandiari, Nobel Peace Prize laureate Shirin Ebadi, welcomed the move.

"Holding them in prison or inside the country is against Iranian laws," she was quoted as saying on the radio's Web site. "They haven't committed any crime; they were innocent."

RFE/RL is a private, nonprofit corporation that receives funding from the U.S. government. It was established in 1949 to spread pro-Western news and promote democratic values and institutions in countries behind the Iron Curtain.

The station moved its headquarters to Prague from Munich, Germany, in 1995, after the collapse of communism.

It has broadcast in 28 languages to 20 countries, including Iran and Iraq since 1998, and Afghanistan from 2002.