Trump warns Assad against ‘reckless attack’ on Idlib province

Taking part would be ‘grave humanitarian mistake’ for Russia and Iran, says Trump

US president Donald Trump has warned Syrian president Bashar al-Assad and his allies against a "reckless attack" on Idlib province.

It comes after Iran's foreign minister Mohammad Javad Zarif said at the start of a visit to Damascus that "terrorists must be purged" from Syria's Idlib and the entire north-western province returned to government control.

But the US president said on Twitter that "President Bashar al-Assad of Syria must not recklessly attack Idlib Province".