DOHA: A nuclear deal with Iran will significantly reduce Tehran’s enrichment capacity, US Vice-President Joe Biden’s national security adviser told a conference in Qatar on Monday.

Dr. Colin H. Kahl, speaking at the US-Islamic World Forum in Doha, said the current deal being hammered out was the best on offer, despite many skeptical voices in the US and elsewhere, including Gulf Arab states.

“Under the deal we are negotiating... Iran’s enrichment capability will be substantially rolled back,” said Kahl.

“The deal we are negotiating makes us and the region safer.”

The ongoing talks to finalize a nuclear accord between Iran and world powers, including the United States, are deadlocked weeks ahead of a deadline.