Israeli Prime Minister Benjamin Netanyahu on Sunday repeated calls for Iran's entire nuclear infrastructure to be dismantled, as Washington and Tehran engage in talks for a nuclear accord.

Iran and the United States prepared Saturday to start in-depth negotiations in Oman over Tehran's rapidly advancing nuclear program, talks that likely will hinge on the Islamic Republic's enrichment of uranium.

Washington opposes Tehran’s insistence on retaining the ability to enrich uranium, but U.S. calls latest round “productive.”