New US Sanctions Target Supreme Leader Khamenei

US President Donald Trump has said he is imposing hard-hitting new sanctions on Iran, including on the office of the country's supreme leader Ali Khamenei.

Donald Trump said the additional sanctions were in response to the shooting down of a US drone and "many other things".

Iranian foreign minister Javad Zarif said the Americans "despise diplomacy".

In a tweet sent after the announcement, Javad Zarif also accused the trump administration of having a "thirst for war".

However, US Treasury Secretary Steve Mnuchin said Trump's executive order, which would lock up "billions" of dollars in Iranian assets was in the works before Tehran shot down an unmanned US drone in the Gulf last week.