DUBAI - A former Iranian prosecutor at the center of a growing confrontation between two of Iran's most powerful figures has been arrested, according to a statement posted Tuesday on the Tehran prosecutor's website.

No reason was given for the arrest, but the timing suggested it might be linked to the role of the former judicial official, Saeed Mortazavi, in a dispute between President Mahmoud Ahmadinejad and Parliament Speaker Ali Larijani.

"The Tehran prosecutor announced Monday night that Saeed Mortazavi has been arrested," read the one-line statement.

Iran's Fars news agency reported Mortazavi was taken to Evin Prison, and said he was arrested as he was leaving work.

Mortazavi was dismissed from his judicial post over the torture deaths of three protesters in custody after the 2009 presidential elections, which the opposition claimed was rigged in Ahmadinejad's favour, bringing huge crowds into the streets.

Fars said Mortazavi's arrest on Monday could be linked to his involvement in the prison deaths. The spokesman for Iran's judiciary, Gholamhossein Mohseni-Ejei, said in January that Iran's court would address the cases in March.

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