(AGI) Vienna, Nov 18 - The final round of 5+1 talks on Iran'snuclear programme began on Tuesday, with Monday, Nov. 24 as thedeadline for a final agreement. Despite months of negotiationsand some progress, positions still seem to be far apart. U.S.Secretary of State John Kerry urged the Islamic Republic to"make all possible efforts" to produce evidence of the peacefulintentions of its nuclear programme. "We hope we get there butwe can't make any predictions," he said in London where he wasmeeting British Foreign Minister Philip Hammond. IranianForeign Minister Javad Zarif said an agreement was stillpossible if the West did not make what he called "excessivedemands". However, if an agreement were not reached because theWest refused to be flexible, then "the world will understandthat the Islamic Republic sought a solution, a compromise and aconstructive agreement and that it will not renounce its rightsand the greatness of the nation". An American source said:"There is still a distance to be bridged and we don't know ifwe will be able to do it." The 5+1 group of the United States,China, Russia, United Kingdom, France and Germany, urged Iranto reduce its nuclear programme by setting limits, but Tehraninsists the programme is only for peaceful purposes. It saidIran has a right for the West to remove the sanctions againstit. (AGI) . .