World powers have opened talks in London to discuss recent negotiations aimed at convincing Iran to abandon uranium enrichment.
Britain's Foreign Secretary Margaret Beckett told reporters Friday she did not expect any major policy decisions to be reached at the meeting.
She said EU foreign policy chief Javier Solana will brief diplomats on recent talks with Iranian officials.
U.S. Secretary of State Condoleezza Rice was expected to arrive late to the meeting, because of a technical problem with a plane carrying her from Iraq.
A State Department spokesman said he expected more talks next week between the five permanent members of the United Nations Security Council (United States, Russia, Britain, France and China) plus Germany.
The U.S. and Britain are pressing for international sanctions to stop Iran's enrichment activity.
Russia's deputy foreign minister, Alexander Alexeyev, said Friday his country and China oppose threats or the use of force against Iran.
Officials say diplomats in the Security Council will discuss possible sanctions against Iran next week.
On Thursday, Iranian President Mahmoud Ahmadinejad said Iran is not frightened by the threat of sanctions.
Western nations accuse Iran of seeking a nuclear weapon - which Iran denies.