Speaking at the G7 meeting on Tuesday in France, Donald Trump claimed that “Iran will never have a nuclear weapon” under the agreement to end the conflict announced at the weekend.

But working out the technicalities will take some time and require trust on both sides.

The deal – which US officials said had been signed electronically by both sides – will be the start of complex discussions around Iran’s nuclear materials and how to verify that they are being used for peaceful purposes.

Shorts

A formal signing ceremony is due to take place in Geneva later this week, with the details of the deal to be hammered out over the next 60 days.