Russian news agencies say Foreign Minister Sergey Lavrov has urged international mediators on Iran's nuclear program to provide security guarantees that would boost chances of a diplomatic resolution. Lavrov is quoted as making the call on Wednesday after meeting with German Foreign Minister Frank-Walter Steinmeier in Yekaterinburg. Germany and Russia are two of the countries in the so-called "sextet" seeking a resolution to tensions over Iran's alleged moves to develop nuclear weapons. Lavrov said that getting Iran to the negotiating table depends on promises that the country is not under threat of military action. The sextet also includes the United States, China, France and Britain.