UN nuclear officials leave Iran after talks, result unclear

FILE PHOTO: The flag of the International Atomic Energy Agency (IAEA) flies in front of its headquarters in Vienna, Austria, May 28, 2015. REUTERS/Heinz-Peter Bader/File Photo

DUBAI (Reuters) -U.N. nuclear watchdog officials left Iran on Monday after talks with the head of its nuclear energy organisation, the semi-official ISNA news agency reported, without saying whether they addressed an impasse over uranium traces at undeclared sites.

The issue has been an obstacle to progress in wider talks to revive Iran's 2015 nuclear deal with major powers, meant to curb its disputed uranium enrichment programme in return for lifting sanctions imposed by Washington after exiting the pact in 2018.