NEW : Iran says allegations of nuclear activities at Parchin military site are ` ` baseless '' Iran 's facilities have produced 500 kilograms of the enriched uranium , the report says . It says Iran has re - established a military base to make U.N. inspection more difficult . CNN 's Michael Martinez and Tim Lister contributed to this report . Iran demands immediate response , expressing concerns over ` ` possible military dimensions ''
NEW : Iran says allegations of nuclear activities at Parchin military site are ` ` baseless '' Iran 's facilities have produced 500 kilograms of the enriched uranium , the report says . It says Iran has re - established a military base to make U.N. inspection more difficult . Iran demands immediate response , expressing concerns over ` ` possible military dimensions ''