The International Atomic Energy Agency (IAEA) reported that Iran had stockpiled 2,442.9 kilograms of enriched uranium, 12 times the limit set by the Joint Comprehensive Plan of Action (JCPOA). The IAEA further observed that Iran was continuing to enrich uranium to 4.5 percent, a breach of the 3.67 percent limit set by the JCPOA. The Agency is still analyzing environmental samples taken from two former nuclear sites and deems "not credible" Iran's explanation for the presence of nuclear material found at a previously undeclared site.