Iran has accelerated its production of near weapons-grade uranium as tensions between Tehran and Washington rise after the election of U.S. President Donald Trump, a report by the United Nations’ nuclear watchdog seen by The Associated Press on Wednesday showed.

According to the International Atomic Energy Agency, Iran is the only non-nuclear weapon state to enrich uranium to 60%, which is higher than what's necessary to produce nuclear power.

Iran's stock of uranium close to weapons grade has jumped since December, two reports by the U.N. nuclear watchdog said on Wednesday.