AFP, Washington, 06 February 2010  – A US diplomat held a conference call Friday with envoys from China, Russia and Europe who are trying to curb Iran’s nuclear ambitions, a State Department spokesman Philip Crowley said.

Crowley said William Burns, the State Department’s number three, held a 90-minute conference call with representatives from the European Union, China and Russia and discussed both 'the pressure track and the negotiation track.'