Iran and six world powers began the second day of talks in Vienna on Wednesday on Tehran's nuclear programme.

Talking to reporters in Vienna, Iranian top negotiator Abbas Araqchi said the Ukraine crisis has no impact on the talks with six nations.

He said all the stakeholders have a unified approach for the sake of negotiations. Iranian negotiator termed the first day talks positive. 

He said the next round of talks with the world powers will be held next month.

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