BRUSSELS - A new round of nuclear talks between Iran and six world powers could still happen in January, diplomats said on Tuesday after planning discussions between senior negotiators from the Islamic Republic and the European Union.

Western diplomats had hoped for negotiations - last held in June - to resume in December or mid-January in the face of increasing concern that the decade-long standoff could trigger a new war in the Middle East. But Iran did not respond to proposed dates in time, Western diplomats said.

Russia voiced alarm last week at delays in agreeing a new round of talks on Iran's atomic work, which the West suspects is aimed at producing nuclear weapons. Iran says it is enriching uranium for solely peaceful energy purposes.

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