Iran is threatening to raise uranium enrichment to weapons-grade levels and exit the Nuclear Non-Proliferation Treaty (NPT) if Western powers move forward with reimposing United Nations sanctions, according to Iranian state media. The warning follows mounting pressure from the United States and its European allies.

Snapback” sanctions will be triggered by the end of August if Tehran fails to make concrete progress to limit its nuclear program.

Iran will react to any reimposition of United Nations sanctions over its nuclear programme, the country's foreign ministry spokesperson said on Monday, without elaborating on what actions Tehran might take.