US President Donald Trump says he has instructed negotiators "not to rush into a deal" with Iran, after earlier suggesting an agreement was close, BBC reported. 

The deal under discussion reportedly involves a 60-day ceasefire extension, reopening the Strait of Hormuz and a plan for further negotiations over Iran's nuclear programme.

In a social media post, Trump said "constructive" talks were proceeding but "both sides must take their time and get it right".