Iranian President Mahmoud Ahmadinejad said Sunday there would soon be what he called "happy news" about developments in Iran's nuclear programmes, but did not elaborate, dpa reported.
The president told reporters in the parliament that the news would involve the upgrade of low-enriched uranium from 3.5 to 20 per cent.
Ahmadinejad said an announcement of the new developments would be officially made in February, when the country will celebrate the 31st anniversary of the 1979 Islamic revolution.
According to a plan brokered last year by the International Atomic Energy Agency, Iran's low-enriched uranium was to be processed by Russia and France for use as fuel in a Tehran medical reactor.
Iran however rejected the original plan and said it would either be ready to purchase fuel, swap its uranium in three different phases on Iranian soil, or process it by itself.