Iran has faced suspicion for decades over its nuclear ambitions and whether it’s developing the capability to fire an atomic weapon.

A senior adviser to Ayatollah Ali Khamenei said Iran will “move toward” a nuclear weapon if attacked by the U.S. or Israel, just a day after President Donald Trump threatened to bomb the country.

Tensions are growing between the United States and Iran over Tehran's nuclear program with the U.S. president saying it could be bombed.