Trump: Fate of Iran nuclear deal depends on tough UN policing
US president Donald Trump has warned Washington will walk away from its nuclear deal with Iran if it deems that the UN watchdog monitoring the agreement is not tough enough.
In a message to a meeting of the International Atomic Energy Agency (IAEA) read by US energy secretary Rick Perry, Mr Trump said "we will not accept a weakly enforced or inadequately monitored deal".
Iran said the greatest threat to the deal is "the American administration's overly hostile attitude".
Alluding to US assertions that the deal allows the IAEA to inspect Tehran's military sites, Iranian nuclear chief Ali Akbar Salehi is urging the agency to "resist such unacceptable demands".