One finding in the report was information that Iran in 2000 had built a large containment chamber at Parchin - a military complex southeast of Tehran - in which to conduct high-explosives tests that the IAEA said are "strong indicators of possible (nuclear) weapon development".Iran has rejected the accusations as fabricated but so far has not granted repeated requests by the UN agency to visit the place. IAEA head Yukiya Amano says the issue is a "priority" for his team of senior officials in this week's discussions.