Iran's chief nuclear negotiator said on Thursday no date has been set for the next round of consultations between Moscow and Tehran on the Iranian nuclear issue.

"We have not set a date for the next meeting. So far, we have agreed that Russia will consider proposals we have made," Ali Larijani said in Moscow, the Interfax news agency reported.

The two sides started their third round of talks Wednesday on Russia's offer to host Iran's uranium enrichment program in Russian territory, but the talks made no visible progress.