A delegation from an opposition Iranian student group met Israel's centrist opposition leader and former foreign minister Tzipi Livni in Tel Aviv on Saturday.
An AFP photographer said the Confederation of Iranian Students delegation was headed by its secretary general, Amir Abbas Fakhravar, who said he was "happy to be in Israel, the only democracy in the region."
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The CIS, founded in the United States, says it has 8,000 members, mostly in Iran, America, Britain, France and Germany, although it has no branches in the Islamic republic.
Livni, in a statement issued by her Kadima party, said she hoped the visit would help show that "Israel only has a problem with the leaders of Iran and not with the Iranian people."
Israel accuses arch-foe Iran, whose President Mahmoud Ahmadinejad has repeatedly predicted the destruction of the Jewish state, of pursuing a nuclear weapons programme, a charge denied by Tehran.