Mr Trump had warned Iran would be hit “very hard” and was reportedly weighing renewed attacks that could include energy infrastructure, with US embassies across the region placed on alert. It begins tomorrow afternoon,” Mr Trump said aboard Air Force One, without disclosing where the meeting would take place or who would attend. Iranian media rejected the claim that Tehran had asked Mr Trump not to strike. At the outset of the conflict, Mr Trump said the war was necessary to confront Iran’s nuclear programme. Oil prices slid at the start of Asian trading after Mr Trump announced the negotiations, with West Texas Intermediate down 4.7% at $80.72 a barrel.