'Rattled' Iran said to be scanning facility for surveillance equipment and checking workers' backgrounds to root out potential spies

International police body refuses to confirm or deny request for help in finding Reza Karimi, who does not appear on 'red notice' list despite mockup displayed on Iranian state TV

Media shows interview with worker at nuclear plant claiming staff has fixed affected centrifuges, is working around clock to resume uranium enrichment

UN watchdog confirms Iranian claim to enrich to near weapons-grade level; underground enrichment at plant was hit by bomb last week

In outlet affiliated with supreme leader, prominent analyst laments Tehran's response to attack on Natanz facility, says retort must be biblical

State TV names wanted man as Reza Karimi, 43; displays Interpol-style 'red notice' seeking his arrest, though Interpol has not confirmed the notice is official