Clinton to discuss Iran during London trip: official

US Secretary of State Hillary Clinton will hold talks on Iran's nuclear programme while she is in London this week for global meetings on Yemen and Afghanistan, a US official said Wednesday, AFP reported.

Clinton is due to hold bilateral talks with representatives from the six world powers involved in negotiations over Iran's nuclear ambitions, on the sidelines of discussions on Yemen on Wednesday and Afghanistan on Thursday.

The United States, Germany, China, France, Britain and Russia have been negotiating with Tehran over its nuclear programme amid concerns that it is secretly developing fissile material for nuclear weapons -- which Iran denies.

"Iran will be a fairly important element of her trip," the US official said, adding that Clinton would also raise the issue during bilateral talks in London with Turkish Foreign Minister Ahmet Davutoglu.

"We're working on the possible elements of a (UN) Security Council resolution and to take stock of existing Security Council resolutions and what additional actions can be taken to implement those.

"Those conversations are ongoing and they will continue for some time."