The latest round of high stakes nuclear talks between Iran and the US have ended, with Tehran calling them difficult but with both sides agreeing to further negotiations.

Iran warned it would hold the United States responsible for any Israeli attack on its atomic facilities, on the eve of a new round of nuclear talks between Washington and Tehran.

Qatar on Tuesday said it was discussing ideas with Oman to try to bridge the remaining gaps in talks between Washington and Tehran as Iran's supreme leader cast doubts on whether negotiations would reach a conclusion.

Media stories quoting the Iranian Foreign Ministry’s spokesperson on the cancellation of the nuclear talks between Iran and the US were nothing but a wild rumor, Tasnim has found.