VIENNA (AP) — The U.N. nuclear agency is confirming that Iran has halted its most sensitive uranium enrichment work as part of a landmark deal struck with world powers.

A report by the International Atomic Energy Agency says Iran stopped 20 per cent uranium enrichment by cutting the link feeding cascades enriching uranium at Nantaz and Fordo. That level of enrichment is only steps away from bomb-making capability.

The IAEA also says Iran gave assurances it will not enrich uranium at other locations during a six-month period in which Tehran and major powers will negotiate a final deal on its nuclear program.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.