Investor optimism this month that the ceasefire between the US and Iran would hold is bearing out, after President Donald Trump announced he was extending a ceasefire with Iran indefinitely a day before it was set to expire.

Iran foreign minister expected on Friday in Islamabad

"Why would I use a nuclear weapon? We've totally, in a very conventional way, decimated ​them without it," Trump told reporters at ​the White House when asked whether he ⁠would use such a weapon.