The U.N. atomic agency reports that Iran hasn’t cooperated with a nuclear probe, raising the prospect of a snapback of sanctions on Tehran.

The U.N. nuclear watchdog says Iran has further increased its stockpile of uranium enriched to near weapons-grade levels.

The International Atomic Energy Agency says Iran has further increased its stockpile of uranium enriched to near weapons-grade levels. Saturday's report comes at a sensitive time as Tehran and Washington have been holding several rounds of talks over a possible nuclear deal that U.