Hossein Moussavian, a prominent critic of Iran?s nuclear policies over the past two years, was arrested this week on spying charges.
World powers warned Iran on Wednesday a third round of U.N. sanctions loomed if it did not halt its uranium enrichment work, which the West suspects could be used to build nuclear weapons.
The United Nations Security Council will need to take "further action" if Iran fails to meet demands to suspend its nuclear programme, a British Foreign Office spokesman said on Wednesday following six-nation talks in London.
An international conference will seek solutions to the Iraq conflict on Thursday but possible talks between U.S. Secretary of State Condoleezza Rice and Iran's foreign minister could grab the limelight.
Six-nation talks are underway Wednesday in London on Iran's controversial nuclear programme, Britain's Foreign Office said.
A meeting of 130 nations on how to shore up the nuclear Non-Proliferation Treaty was suspended on Wednesday for 24 hours so diplomats could try and overcome a standoff triggered by Iran's objections to the agenda.
Iran's objections to language calling for total compliance with the Nuclear Nonproliferation Treaty on Wednesday led organizers at a meeting reviewing the pact to postpone the next session
China should freeze investments in Iran and vigorously enforce UN sanctions against the Islamic republic for pursuing sensitive nuclear work, an ex-senior US official who crafted US policy on China said Wednesday.
Iran's objections to language calling for total compliance with the Nuclear Nonproliferation Treaty on Wednesday led organizers at a meeting reviewing the pact to postpone the next session to give time to search for a compromise.
Japan and Egypt agreed on Wednesday to work together in a bid to end the crisis over Iran's nuclear ambitions and called for a Middle East free of weapons of mass destruction.