By Parisa Hafezi DUBAI (Reuters) -Top Iranian and U.S. negotiators will resume talks on Sunday to address disputes over Tehran's nuclear programme, in a push for progress as Washington hardens its stance ahead of U.

An Iranian official told CNN that recent indirect talks with the United States aimed at addressing Tehran’s nuclear program and lifting sanctions were “not genuine” from the American side and were likely designed from the outset as a “trap to draw the situation toward tension.

Iran and the United States have begun a fourth round of negotiations over Tehran’s rapidly advancing nuclear program.