Iran's President Hassan Rouhani has reiterated commitment to nuclear non-proliferation saying that all nuclear activities of the country are peaceful and for non-military purposes.

In televised remarks on the occasion of launching of advanced centrifuges at the underground Natanz nuclear plant, he said Iran will remain committed to pledge made to the world.

The ceremony unveiled 133 advances over the past year in the country’s nuclear industry mostly in the fields of medicine, power, agricultural and energy.