A senior Iranian envoy says nuclear talks have included possible ways to reduce sanctions on oil sales and banking in exchange for curbs in Tehran's atomic program.

The remarks by negotiator Abbas Araghchi on Iranian state TV reflect the scope of the possible first steps in a deal aimed at easing Western concerns that Iran could one day make a nuclear weapon — an assertion Iran strongly denies.

Iran seeks a rollback in U.S.-led sanctions on oil exports and access to international banking systems. Envoys for the U.S. and other world powers want to trim Iran's uranium enrichment.

Araghchi repeated Thursday that Iran would never halt its enrichment program, but would discuss setting levels.

He noted a "probability" of accord emerging from the current round, which opened Wednesday.