The United States and Iran are set to sit down for a sixth round of nuclear negotiations. Oman is likely to be the venue.

Esmaeil Baghaei, spokesperson for the Iranian Foreign Ministry, noted in a statement on the 10th that "the negotiations with the United States are scheduled to take place in Muscat, Oman, on Sunday (15th)," according to major foreign media outlets such as AFP and Reuters.

President Donald Trump also said the day before (local time) at a symposium on investment related to the U.S. held at the White House in Washington, D.C., that "additional nuclear negotiations with Iran are expected," adding, "They (Iran) seek to enrich uranium, but they will not be able to do so."

Reza Najafi, Iran's ambassador to the IAEA, attends the regular board meeting on the 9th and answers questions. /Courtesy of Yonhap News Agency

President Trump stated that negotiations are scheduled to take place on the 12th, contrary to Iran's announcement.

The two countries have been engaged in indirect negotiations mediated by Oman since last April. However, differences in positions regarding Iran's uranium enrichment issue and the lifting of sanctions against Iran, led by the U.S., have remained difficult to narrow.

The Iranian Foreign Ministry stated that it will present a revised proposal for the agreement recently suggested by the United States within a few days.

On the other hand, President Trump maintains that he will not rule out military action if the negotiations regarding Iran's nuclear issue fail.

Currently, Iran is enriching uranium to 60%, technically approaching the 90% level required for the production of nuclear weapons.