BBC: Iran has denied foreign media reports of a major explosion at one of its underground uranium enrichment sites.
The deputy head of Atomic Energy Organisation of Iran (AEOI) called the reports "Western propaganda" designed to influence forthcoming nuclear talks.
Reports in Israeli and Western media said a blast at the Fordo facility near Qom had caused significant damage.
Meanwhile, Russia has criticised the West and Iran for a fresh delay to the talks, six months after the last round.
Foreign...