Iran says it has enriched uranium with 60% purity The Islamic Republic made the "proud" announcement via Twitter. The news comes amid rising tensions in the Middle East in the wake of an attack at a nuclear plant south of Tehran. Mohammad Baqer Ghalibaf said he was "proud" of Iran's nuclear enrichment Iran started enriching uranium up to 60% purity on Friday after an attack targeted its Natanz nuclear plant, Tehran's parliament speaker said. Mohammad Bagher Qalibaf tweeted: "I am proud to announce that at 00:40 last night, and on the night of the pilgrimage of Sayyid al-Shuhada, young and pious Iranian scientists were able to obtain a product of 60% enriched uranium."