Iranian and Russian officials held talks Saturday in Tehran on a proposed compromise to end a standoff with the West over Tehran's nuclear program.

At issue is Russia's proposal that Iran enrich uranium in Russia to allay Western concerns that the technology could allow Tehran to produce a nuclear bomb. Iran insists its nuclear program's only aim is to produce electricity.

In recent weeks, Iranian officials have wavered about the proposed compromise, first suggesting that they might consider it and then insisting that they would do so only if any deal explicitly recognized Iran's right to carry out enrichment on Iranian soil.

Iranian officials said Tuesday Iran would re-start next week research on nuclear fuel that it froze more than two years ago. Washington strongly criticized the move.

Some information for this report was provided by AFP, AP and Reuters.