Fredrik Dahl

VIENNA (Reuters) - The U.N. nuclear supervisor flew to Tehran on Sunday voicing optimism he could reach a deal to investigate suspected atom bomb research - a possible breakthrough that...

VIENNA (Reuters) - Iran and the U.N. nuclear watchdog are making headway towards a framework deal on how to tackle concerns about its atomic activity, diplomats say, a potential bargaining...

VIENNA (Reuters) - The U.N. nuclear chief will fly to Tehran on Sunday in an apparent bid to secure a deal enabling his inspectors to probe suspicions of atomic bomb...

VIENNA (Reuters) - The U.N. nuclear chief will fly to Tehran on Sunday in an apparent bid to secure a deal enabling his inspectors to probe suspicions of atomic bomb...

VIENNA (Reuters) - Iran and the U.N. nuclear watchdog are making headway towards a framework deal on how to tackle concerns about its atomic activity, diplomats say, a potential bargaining...

VIENNA (Reuters) - The U.N. nuclear watchdog and Iran may be narrowing their differences on how to tackle concerns over Tehran's atomic ambitions, diplomatic sources said on Wednesday, suggesting a...

VIENNA (Reuters) - Iran is installing more centrifuges in an underground plant but does not yet appear to be using them to expand higher-grade uranium enrichment that could take it...

VIENNA (Reuters) - The U.N. nuclear watchdog and Iran may be narrowing their differences on how to tackle concerns over Tehran's atomic ambitions, diplomatic sources said on Wednesday, suggesting a...

VIENNA (Reuters) - Iran is installing more centrifuges in an underground plant but does not yet appear to be using them to expand higher-grade uranium enrichment that could take it...

VIENNA (Reuters) - Iran and the U.N. nuclear watchdog ended two days of talks on Tuesday by agreeing to meet again next week, just two days before Tehran resumes negotiations...