ROME, May 23 (Xinhua) -- The fifth round of talks between Iran and the United States started Friday in the Italian capital of Rome with Oman's mediation, according to Iranian media.
The most recent round of negotiations between the two sides was held in Oman on May 11. According to Italian media reports, tensions have since flared between Iran and the United States over uranium enrichment.
The Trump administration had sought to halt all uranium enrichment by Iran, but Tehran rejected the notion of "zero enrichment" and demanded the lifting of economic sanctions, the report said.
Italian Foreign Minister Antonio Tajani told the media that the Italian government "fully supports this mediation effort," but acknowledged that "it is certainly not an easy negotiation." ■