Iranian Foreign Minister Mohammad Javad Zarif said a new ministerial meeting with the P5+1 countries was \"necessary\" following Geneva talks on Tuesday aimed at reaching agreement over Tehran\'s nuclear programme. \"I hope that we will be able to reach a roadmap by Wednesday but... it will probably be necessary to have a new ministerial meeting,\" Zarif wrote on his Facebook page late Sunday. The talks in Geneva will be lead by Iran\'s deputy foreign minister and deputies from the six world powers.