A Downing Street spokesperson said:
The Prime Minister held separate phone calls with the French President Emmanuel Macron and the German Chancellor Angela Merkel yesterday and this morning.
They discussed the importance of the Iran nuclear deal (Joint Comprehensive Plan of Action) as the best way of neutralising the threat of a nuclear-armed Iran, agreeing that our priority as an international community remained preventing Iran from developing a nuclear weapon.
They agreed that there were important elements that the deal does not cover, but which we need to address – including ballistic missiles, what happens when the deal expires, and Irans destabilising regional activity.
Acknowledging the importance of retaining the JCPoA, they committed to continue working closely together and with the US on how to tackle the range of challenges that Iran poses – including those issues that a new deal might cover.
They also noted the vital importance of our steel and aluminium industries and their concern about the impact of US tariffs. The leaders pledged to continue to work closely with the rest of the EU and the US Administration with the aim of a permanent exemption from US tariffs.
Finally, they all agreed on the value of continued engagement in the E3 format (Britain, France and Germany) to advance our shared interests and our security.