Trump warns world against doing business with Iran

US President Donald Trump on Tuesday warned the world against doing business with Iran as Washington reimposed "the most biting sanctions ever" on the Islamic republic, triggering a mix of anger, fear and defiance in Tehran. Trump's May withdrawal from a landmark 2015 nuclear deal with Tehran had spooked investors and triggered a run on the Iranian rial long before the punishing sanctions went back into force. The sanctions reimposed on Tuesday, which target access to US banknotes and key industries such as cars and carpets, were unlikely to cause immediate economic turmoil. (AFP)