Tehran could make a deal to appease foreign leaders concerned it could weaponize its nuclear program, but is not willing to dismantle its facilities altogether.

Iran and the United States began a fifth round of negotiations over Tehran’s rapidly advancing nuclear program Friday in Rome, with enrichment emerging as the key issue.

Iran and the United States made “some but not conclusive progress” Friday in a fifth round of negotiations in Rome over Tehran’s rapidly advancing nuclear program, the talks’ Omani mediator said.