Trump calls Iran "world's leading sponsor of terrorism"

Trump earlier turned down meeting with Tehran

US President was due on stage around 10am, he arrived at 10.15am

What to expect from the US President's speech

Donald Trump, the US president, launched a scathing attack on Iran on Tuesday, accusing their leaders of sowing “chaos, death and destruction” in a hard-hitting speech to the United Nations.

Mr Trump, making his second appearance at the annual gathering of world leaders, used his speech to urge countries to turn their backs on multilateral organisations and prioritise their own countries’ needs.

“We reject the ideology of globalism, and we embrace the doctrine of patriotism,” he told delegates, in an emphatic defence of his "America First" foreign policy.

Mr Trump's message was later reinforced in a fiery speech from his national security advisor, John Bolton, who warned Iran there would be "hell to pay" if they "continue to lie, cheat and deceive" or "cross" the US and its allies.