Iranian Foreign Minister Javad Zarif says the door is still open to negotiation if US President Donald Trump lifts sanctions on Tehran.

His comments came as European foreign ministers called for dialogue between the US and Iran to try and save the 2015 nuclear deal.

The leaders held talks in Brussels in an attempt to salvage the agreement- which the European Union's Foreign Policy Chief Federica Mogherini insists is still alive.

Al Jazeera's Dominic Kane reports from Brussels.