Japan has offered to enrich uranium for Iran to allow it access to nuclear power while allaying international fears it might be seeking an atomic weapon, the Nikkei business daily reported Wednesday.

Tehran had not yet given a concrete response, but the issue was expected to be discussed Wednesday in Tokyo by Iran''s parliament speaker Ali Larijani and Japanese Foreign Minister Katsuya Okada, the daily said in an online report.

World powers suspect Iran is enriching uranium to make nuclear weapons under cover of its civilian energy programme, a charge Tehran denies.

Iran is at loggerheads with world powers for not accepting a deal drafted by the International Atomic Energy Agency that would supply it with nuclear fuel for a research reactor if it transfers the bulk of its low-enriched uranium.