JD Vance letter may offer last chance to avert fresh conflict between US and Iran

US vice-president writes to top Iranian security official in sign Washington has not abandoned diplomacy

Hopes of averting a major new conflagration between Iran and the US soon after Tuesday's midterm elections could rest on Iran's response to a personal letter from the US vice-president, JD Vance, offering to restart diplomacy.

The letter, written after predominantly Qatari mediation, was sent to the secretary of Iran's supreme national security council, Mohsen Rezaei on Sunday. It requires Tehran to agree to make commitments on its nuclear programme at the start of a process that would lead to the opening of the strait of Hormuz within seven days in return for US sanctions relief.