Iran 'unmoved' by threats over nuclear weapons

Iran's foreign minister has brushed aside new pressure from the United States, declaring that his country is "unmoved by threats" but responds well to respect.

President Donald Trump has repeatedly criticised the 2015 nuclear agreement between Iran, the US and five other world powers, under which Tehran agreed to curb its uranium enrichment in exchange for the lifting of international sanctions, but has not said what he plans to do about it.