"I don't know anyone who is talking about military action in Iran or Syria," Blair said at his regular monthly press conference.

"But what we are insisting on, quite rightly, is that there is a proper obligation on the Iranians to comply with international law and regulations, laid down by the UN's International Atomic Energy Agency.

"Now I don't think dialogue has been exhuasted on this at all, but we do need the Iranians to understand that the international community does not find it acceptable that they develop nuclear weapons," he said.

Blair was speaking after diplomats in Vienna said that officials from Britain, France and Germany would resume talks on Wednesday with their Iranian counterparts aimed at ending a standoff over the issue.

Iran's top nuclear official said earlier on Monday that Tehran could consider continuing a suspension of uranium enrichment, as demanded by the European powers.

The three countries presented Iran with a deal last week under which Tehran would receive valuable nuclear technology if it promised it was not trying to build atomic weapons, including indefinitely suspending all uranium enrichment activities, a key stage in the nuclear fuel cycle.

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